vendor/llvm/llvm-trunk-r300422

1 files changed, 789 insertions, 0 deletions

diff --git a/test/CodeGen/PowerPC/select_const.ll b/test/CodeGen/PowerPC/select_const.ll
new file mode 100644
index 0000000000000..29548123be888
--- /dev/null
+++ b/test/CodeGen/PowerPC/select_const.ll
@@ -0,0 +1,789 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs -mattr=+isel | FileCheck %s --check-prefix=ALL --check-prefix=ISEL
+; RUN: llc < %s -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs -mattr=-isel | FileCheck %s --check-prefix=ALL --check-prefix=NO_ISEL
+
+; Select of constants: control flow / conditional moves can always be replaced by logic+math (but may not be worth it?).
+; Test the zeroext/signext variants of each pattern to see if that makes a difference.
+
+; select Cond, 0, 1 --> zext (!Cond)
+
+define i32 @select_0_or_1(i1 %cond) {
+; ALL-LABEL: select_0_or_1:
+; ALL:       # BB#0:
+; ALL-NEXT:    not 3, 3
+; ALL-NEXT:    clrldi 3, 3, 63
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 0, i32 1
+  ret i32 %sel
+}
+
+define i32 @select_0_or_1_zeroext(i1 zeroext %cond) {
+; ALL-LABEL: select_0_or_1_zeroext:
+; ALL:       # BB#0:
+; ALL-NEXT:    xori 3, 3, 1
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 0, i32 1
+  ret i32 %sel
+}
+
+define i32 @select_0_or_1_signext(i1 signext %cond) {
+; ALL-LABEL: select_0_or_1_signext:
+; ALL:       # BB#0:
+; ALL-NEXT:    not 3, 3
+; ALL-NEXT:    clrldi 3, 3, 63
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 0, i32 1
+  ret i32 %sel
+}
+
+; select Cond, 1, 0 --> zext (Cond)
+
+define i32 @select_1_or_0(i1 %cond) {
+; ALL-LABEL: select_1_or_0:
+; ALL:       # BB#0:
+; ALL-NEXT:    clrldi 3, 3, 63
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 1, i32 0
+  ret i32 %sel
+}
+
+define i32 @select_1_or_0_zeroext(i1 zeroext %cond) {
+; ALL-LABEL: select_1_or_0_zeroext:
+; ALL:       # BB#0:
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 1, i32 0
+  ret i32 %sel
+}
+
+define i32 @select_1_or_0_signext(i1 signext %cond) {
+; ALL-LABEL: select_1_or_0_signext:
+; ALL:       # BB#0:
+; ALL-NEXT:    clrldi 3, 3, 63
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 1, i32 0
+  ret i32 %sel
+}
+
+; select Cond, 0, -1 --> sext (!Cond)
+
+define i32 @select_0_or_neg1(i1 %cond) {
+; ISEL-LABEL: select_0_or_neg1:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    ori 3, 3, 65535
+; ISEL-NEXT:    isel 3, 0, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_0_or_neg1:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    ori 3, 3, 65535
+; NO_ISEL-NEXT:    bc 12, 1, .LBB6_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB6_1:
+; NO_ISEL-NEXT:    addi 3, 0, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 0, i32 -1
+  ret i32 %sel
+}
+
+define i32 @select_0_or_neg1_zeroext(i1 zeroext %cond) {
+; ISEL-LABEL: select_0_or_neg1_zeroext:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    ori 3, 3, 65535
+; ISEL-NEXT:    isel 3, 0, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_0_or_neg1_zeroext:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    ori 3, 3, 65535
+; NO_ISEL-NEXT:    bc 12, 1, .LBB7_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB7_1:
+; NO_ISEL-NEXT:    addi 3, 0, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 0, i32 -1
+  ret i32 %sel
+}
+
+define i32 @select_0_or_neg1_signext(i1 signext %cond) {
+; ISEL-LABEL: select_0_or_neg1_signext:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    ori 3, 3, 65535
+; ISEL-NEXT:    isel 3, 0, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_0_or_neg1_signext:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    ori 3, 3, 65535
+; NO_ISEL-NEXT:    bc 12, 1, .LBB8_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB8_1:
+; NO_ISEL-NEXT:    addi 3, 0, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 0, i32 -1
+  ret i32 %sel
+}
+
+; select Cond, -1, 0 --> sext (Cond)
+
+define i32 @select_neg1_or_0(i1 %cond) {
+; ISEL-LABEL: select_neg1_or_0:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    ori 3, 3, 65535
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_neg1_or_0:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    ori 3, 3, 65535
+; NO_ISEL-NEXT:    bclr 12, 1, 0
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 -1, i32 0
+  ret i32 %sel
+}
+
+define i32 @select_neg1_or_0_zeroext(i1 zeroext %cond) {
+; ISEL-LABEL: select_neg1_or_0_zeroext:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    ori 3, 3, 65535
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_neg1_or_0_zeroext:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    ori 3, 3, 65535
+; NO_ISEL-NEXT:    bclr 12, 1, 0
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 -1, i32 0
+  ret i32 %sel
+}
+
+define i32 @select_neg1_or_0_signext(i1 signext %cond) {
+; ISEL-LABEL: select_neg1_or_0_signext:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    ori 3, 3, 65535
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_neg1_or_0_signext:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    ori 3, 3, 65535
+; NO_ISEL-NEXT:    bclr 12, 1, 0
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 -1, i32 0
+  ret i32 %sel
+}
+
+; select Cond, C+1, C --> add (zext Cond), C
+
+define i32 @select_Cplus1_C(i1 %cond) {
+; ALL-LABEL: select_Cplus1_C:
+; ALL:       # BB#0:
+; ALL-NEXT:    clrldi 3, 3, 63
+; ALL-NEXT:    addi 3, 3, 41
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 42, i32 41
+  ret i32 %sel
+}
+
+define i32 @select_Cplus1_C_zeroext(i1 zeroext %cond) {
+; ALL-LABEL: select_Cplus1_C_zeroext:
+; ALL:       # BB#0:
+; ALL-NEXT:    addi 3, 3, 41
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 42, i32 41
+  ret i32 %sel
+}
+
+define i32 @select_Cplus1_C_signext(i1 signext %cond) {
+; ALL-LABEL: select_Cplus1_C_signext:
+; ALL:       # BB#0:
+; ALL-NEXT:    subfic 3, 3, 41
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 42, i32 41
+  ret i32 %sel
+}
+
+; select Cond, C, C+1 --> add (sext Cond), C
+
+define i32 @select_C_Cplus1(i1 %cond) {
+; ALL-LABEL: select_C_Cplus1:
+; ALL:       # BB#0:
+; ALL-NEXT:    clrldi 3, 3, 63
+; ALL-NEXT:    subfic 3, 3, 42
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 41, i32 42
+  ret i32 %sel
+}
+
+define i32 @select_C_Cplus1_zeroext(i1 zeroext %cond) {
+; ALL-LABEL: select_C_Cplus1_zeroext:
+; ALL:       # BB#0:
+; ALL-NEXT:    subfic 3, 3, 42
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 41, i32 42
+  ret i32 %sel
+}
+
+define i32 @select_C_Cplus1_signext(i1 signext %cond) {
+; ALL-LABEL: select_C_Cplus1_signext:
+; ALL:       # BB#0:
+; ALL-NEXT:    addi 3, 3, 42
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i32 41, i32 42
+  ret i32 %sel
+}
+
+; In general, select of 2 constants could be:
+; select Cond, C1, C2 --> add (mul (zext Cond), C1-C2), C2 --> add (and (sext Cond), C1-C2), C2
+
+define i32 @select_C1_C2(i1 %cond) {
+; ISEL-LABEL: select_C1_C2:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    li 4, 421
+; ISEL-NEXT:    li 3, 42
+; ISEL-NEXT:    isel 3, 4, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_C1_C2:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    li 4, 421
+; NO_ISEL-NEXT:    li 3, 42
+; NO_ISEL-NEXT:    bc 12, 1, .LBB18_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB18_1:
+; NO_ISEL-NEXT:    addi 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 421, i32 42
+  ret i32 %sel
+}
+
+define i32 @select_C1_C2_zeroext(i1 zeroext %cond) {
+; ISEL-LABEL: select_C1_C2_zeroext:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    li 4, 421
+; ISEL-NEXT:    li 3, 42
+; ISEL-NEXT:    isel 3, 4, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_C1_C2_zeroext:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    li 4, 421
+; NO_ISEL-NEXT:    li 3, 42
+; NO_ISEL-NEXT:    bc 12, 1, .LBB19_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB19_1:
+; NO_ISEL-NEXT:    addi 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 421, i32 42
+  ret i32 %sel
+}
+
+define i32 @select_C1_C2_signext(i1 signext %cond) {
+; ISEL-LABEL: select_C1_C2_signext:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    li 4, 421
+; ISEL-NEXT:    li 3, 42
+; ISEL-NEXT:    isel 3, 4, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: select_C1_C2_signext:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    li 4, 421
+; NO_ISEL-NEXT:    li 3, 42
+; NO_ISEL-NEXT:    bc 12, 1, .LBB20_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB20_1:
+; NO_ISEL-NEXT:    addi 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i32 421, i32 42
+  ret i32 %sel
+}
+
+; A binary operator with constant after the select should always get folded into the select.
+
+define i8 @sel_constants_add_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_add_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    li 4, 1
+; ISEL-NEXT:    li 3, 28
+; ISEL-NEXT:    isel 3, 4, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_add_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    li 4, 1
+; NO_ISEL-NEXT:    li 3, 28
+; NO_ISEL-NEXT:    bc 12, 1, .LBB21_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB21_1:
+; NO_ISEL-NEXT:    addi 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = add i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_sub_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_sub_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    li 4, 18
+; ISEL-NEXT:    ori 3, 3, 65527
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_sub_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    li 4, 18
+; NO_ISEL-NEXT:    ori 3, 3, 65527
+; NO_ISEL-NEXT:    bclr 12, 1, 0
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = sub i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_mul_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_mul_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    lis 4, 16383
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    ori 3, 4, 65531
+; ISEL-NEXT:    li 4, 115
+; ISEL-NEXT:    sldi 3, 3, 2
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_mul_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    lis 4, 16383
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    ori 3, 4, 65531
+; NO_ISEL-NEXT:    li 4, 115
+; NO_ISEL-NEXT:    sldi 3, 3, 2
+; NO_ISEL-NEXT:    bclr 12, 1, 0
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = mul i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_sdiv_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_sdiv_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    li 3, 4
+; ISEL-NEXT:    isel 3, 0, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_sdiv_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    li 3, 4
+; NO_ISEL-NEXT:    bc 12, 1, .LBB24_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB24_1:
+; NO_ISEL-NEXT:    addi 3, 0, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = sdiv i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_udiv_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_udiv_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    li 4, 50
+; ISEL-NEXT:    li 3, 4
+; ISEL-NEXT:    isel 3, 4, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_udiv_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    li 4, 50
+; NO_ISEL-NEXT:    li 3, 4
+; NO_ISEL-NEXT:    bc 12, 1, .LBB25_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB25_1:
+; NO_ISEL-NEXT:    addi 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = udiv i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_srem_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_srem_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    lis 4, 16383
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    ori 3, 4, 65535
+; ISEL-NEXT:    li 4, 3
+; ISEL-NEXT:    sldi 3, 3, 2
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_srem_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    lis 4, 16383
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    ori 3, 4, 65535
+; NO_ISEL-NEXT:    li 4, 3
+; NO_ISEL-NEXT:    sldi 3, 3, 2
+; NO_ISEL-NEXT:    bclr 12, 1, 0
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = srem i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_urem_constant(i1 %cond) {
+; ALL-LABEL: sel_constants_urem_constant:
+; ALL:       # BB#0:
+; ALL-NEXT:    rlwinm 3, 3, 0, 31, 31
+; ALL-NEXT:    subfic 3, 3, 3
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = urem i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_and_constant(i1 %cond) {
+; ALL-LABEL: sel_constants_and_constant:
+; ALL:       # BB#0:
+; ALL-NEXT:    rlwinm 3, 3, 0, 31, 31
+; ALL-NEXT:    subfic 3, 3, 5
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = and i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_or_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_or_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    li 4, 23
+; ISEL-NEXT:    ori 3, 3, 65533
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_or_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    li 4, 23
+; NO_ISEL-NEXT:    ori 3, 3, 65533
+; NO_ISEL-NEXT:    bclr 12, 1, 0
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = or i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_xor_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_xor_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    li 4, 0
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    oris 3, 4, 65535
+; ISEL-NEXT:    li 4, 18
+; ISEL-NEXT:    ori 3, 3, 65529
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_xor_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    li 4, 0
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    oris 3, 4, 65535
+; NO_ISEL-NEXT:    li 4, 18
+; NO_ISEL-NEXT:    ori 3, 3, 65529
+; NO_ISEL-NEXT:    bclr 12, 1, 0
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = xor i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_shl_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_shl_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    lis 5, 511
+; ISEL-NEXT:    lis 4, 2047
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    ori 3, 4, 65535
+; ISEL-NEXT:    ori 12, 5, 65535
+; ISEL-NEXT:    sldi 3, 3, 5
+; ISEL-NEXT:    sldi 4, 12, 7
+; ISEL-NEXT:    isel 3, 4, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_shl_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    lis 5, 511
+; NO_ISEL-NEXT:    lis 4, 2047
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    ori 3, 4, 65535
+; NO_ISEL-NEXT:    ori 12, 5, 65535
+; NO_ISEL-NEXT:    sldi 3, 3, 5
+; NO_ISEL-NEXT:    sldi 4, 12, 7
+; NO_ISEL-NEXT:    bc 12, 1, .LBB31_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB31_1:
+; NO_ISEL-NEXT:    addi 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = shl i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_lshr_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_lshr_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    li 4, 7
+; ISEL-NEXT:    li 3, 0
+; ISEL-NEXT:    isel 3, 4, 3, 1
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_lshr_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    li 4, 7
+; NO_ISEL-NEXT:    li 3, 0
+; NO_ISEL-NEXT:    bc 12, 1, .LBB32_1
+; NO_ISEL-NEXT:    blr
+; NO_ISEL-NEXT:  .LBB32_1:
+; NO_ISEL-NEXT:    addi 3, 4, 0
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = lshr i8 %sel, 5
+  ret i8 %bo
+}
+
+define i8 @sel_constants_ashr_constant(i1 %cond) {
+; ALL-LABEL: sel_constants_ashr_constant:
+; ALL:       # BB#0:
+; ALL-NEXT:    clrldi 3, 3, 63
+; ALL-NEXT:    neg 3, 3
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, i8 -4, i8 23
+  %bo = ashr i8 %sel, 5
+  ret i8 %bo
+}
+
+define double @sel_constants_fadd_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_fadd_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    addis 4, 2, .LCPI34_0@toc@ha
+; ISEL-NEXT:    addis 3, 2, .LCPI34_1@toc@ha
+; ISEL-NEXT:    addi 4, 4, .LCPI34_0@toc@l
+; ISEL-NEXT:    addi 3, 3, .LCPI34_1@toc@l
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    lxsdx 1, 0, 3
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_fadd_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    addis 4, 2, .LCPI34_0@toc@ha
+; NO_ISEL-NEXT:    addis 3, 2, .LCPI34_1@toc@ha
+; NO_ISEL-NEXT:    addi 4, 4, .LCPI34_0@toc@l
+; NO_ISEL-NEXT:    addi 3, 3, .LCPI34_1@toc@l
+; NO_ISEL-NEXT:    bc 12, 1, .LBB34_2
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    b .LBB34_2
+; NO_ISEL-NEXT:  .LBB34_2:
+; NO_ISEL-NEXT:    lxsdx 1, 0, 3
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, double -4.0, double 23.3
+  %bo = fadd double %sel, 5.1
+  ret double %bo
+}
+
+define double @sel_constants_fsub_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_fsub_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    addis 4, 2, .LCPI35_0@toc@ha
+; ISEL-NEXT:    addis 3, 2, .LCPI35_1@toc@ha
+; ISEL-NEXT:    addi 4, 4, .LCPI35_0@toc@l
+; ISEL-NEXT:    addi 3, 3, .LCPI35_1@toc@l
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    lxsdx 1, 0, 3
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_fsub_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    addis 4, 2, .LCPI35_0@toc@ha
+; NO_ISEL-NEXT:    addis 3, 2, .LCPI35_1@toc@ha
+; NO_ISEL-NEXT:    addi 4, 4, .LCPI35_0@toc@l
+; NO_ISEL-NEXT:    addi 3, 3, .LCPI35_1@toc@l
+; NO_ISEL-NEXT:    bc 12, 1, .LBB35_2
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    b .LBB35_2
+; NO_ISEL-NEXT:  .LBB35_2:
+; NO_ISEL-NEXT:    lxsdx 1, 0, 3
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, double -4.0, double 23.3
+  %bo = fsub double %sel, 5.1
+  ret double %bo
+}
+
+define double @sel_constants_fmul_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_fmul_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    addis 4, 2, .LCPI36_0@toc@ha
+; ISEL-NEXT:    addis 3, 2, .LCPI36_1@toc@ha
+; ISEL-NEXT:    addi 4, 4, .LCPI36_0@toc@l
+; ISEL-NEXT:    addi 3, 3, .LCPI36_1@toc@l
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    lxsdx 1, 0, 3
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_fmul_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    addis 4, 2, .LCPI36_0@toc@ha
+; NO_ISEL-NEXT:    addis 3, 2, .LCPI36_1@toc@ha
+; NO_ISEL-NEXT:    addi 4, 4, .LCPI36_0@toc@l
+; NO_ISEL-NEXT:    addi 3, 3, .LCPI36_1@toc@l
+; NO_ISEL-NEXT:    bc 12, 1, .LBB36_2
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    b .LBB36_2
+; NO_ISEL-NEXT:  .LBB36_2:
+; NO_ISEL-NEXT:    lxsdx 1, 0, 3
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, double -4.0, double 23.3
+  %bo = fmul double %sel, 5.1
+  ret double %bo
+}
+
+define double @sel_constants_fdiv_constant(i1 %cond) {
+; ISEL-LABEL: sel_constants_fdiv_constant:
+; ISEL:       # BB#0:
+; ISEL-NEXT:    andi. 3, 3, 1
+; ISEL-NEXT:    addis 4, 2, .LCPI37_0@toc@ha
+; ISEL-NEXT:    addis 3, 2, .LCPI37_1@toc@ha
+; ISEL-NEXT:    addi 4, 4, .LCPI37_0@toc@l
+; ISEL-NEXT:    addi 3, 3, .LCPI37_1@toc@l
+; ISEL-NEXT:    isel 3, 3, 4, 1
+; ISEL-NEXT:    lxsdx 1, 0, 3
+; ISEL-NEXT:    blr
+;
+; NO_ISEL-LABEL: sel_constants_fdiv_constant:
+; NO_ISEL:       # BB#0:
+; NO_ISEL-NEXT:    andi. 3, 3, 1
+; NO_ISEL-NEXT:    addis 4, 2, .LCPI37_0@toc@ha
+; NO_ISEL-NEXT:    addis 3, 2, .LCPI37_1@toc@ha
+; NO_ISEL-NEXT:    addi 4, 4, .LCPI37_0@toc@l
+; NO_ISEL-NEXT:    addi 3, 3, .LCPI37_1@toc@l
+; NO_ISEL-NEXT:    bc 12, 1, .LBB37_2
+; NO_ISEL-NEXT:  # BB#1:
+; NO_ISEL-NEXT:    ori 3, 4, 0
+; NO_ISEL-NEXT:    b .LBB37_2
+; NO_ISEL-NEXT:  .LBB37_2:
+; NO_ISEL-NEXT:    lxsdx 1, 0, 3
+; NO_ISEL-NEXT:    blr
+  %sel = select i1 %cond, double -4.0, double 23.3
+  %bo = fdiv double %sel, 5.1
+  ret double %bo
+}
+
+define double @sel_constants_frem_constant(i1 %cond) {
+; ALL-LABEL: sel_constants_frem_constant:
+; ALL:       # BB#0:
+; ALL-NEXT:    andi. 3, 3, 1
+; ALL-NEXT:    bc 12, 1, .LBB38_2
+; ALL-NEXT:  # BB#1:
+; ALL-NEXT:    addis 3, 2, .LCPI38_0@toc@ha
+; ALL-NEXT:    addi 3, 3, .LCPI38_0@toc@l
+; ALL-NEXT:    lxsdx 1, 0, 3
+; ALL-NEXT:    blr
+; ALL-NEXT:  .LBB38_2:
+; ALL-NEXT:    addis 3, 2, .LCPI38_1@toc@ha
+; ALL-NEXT:    addi 3, 3, .LCPI38_1@toc@l
+; ALL-NEXT:    lxsspx 1, 0, 3
+; ALL-NEXT:    blr
+  %sel = select i1 %cond, double -4.0, double 23.3
+  %bo = frem double %sel, 5.1
+  ret double %bo
+}
+