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-rw-r--r--test/CodeGen/SPARC/64abi.ll378
1 files changed, 378 insertions, 0 deletions
diff --git a/test/CodeGen/SPARC/64abi.ll b/test/CodeGen/SPARC/64abi.ll
new file mode 100644
index 0000000000000..ec97135721413
--- /dev/null
+++ b/test/CodeGen/SPARC/64abi.ll
@@ -0,0 +1,378 @@
+; RUN: llc < %s -march=sparcv9 -disable-sparc-delay-filler | FileCheck %s
+
+; CHECK: intarg
+; The save/restore frame is not strictly necessary here, but we would need to
+; refer to %o registers instead.
+; CHECK: save %sp, -128, %sp
+; CHECK: stb %i0, [%i4]
+; CHECK: stb %i1, [%i4]
+; CHECK: sth %i2, [%i4]
+; CHECK: st %i3, [%i4]
+; CHECK: stx %i4, [%i4]
+; CHECK: st %i5, [%i4]
+; CHECK: ld [%fp+2227], [[R:%[gilo][0-7]]]
+; CHECK: st [[R]], [%i4]
+; CHECK: ldx [%fp+2231], [[R:%[gilo][0-7]]]
+; CHECK: stx [[R]], [%i4]
+; CHECK: restore
+define void @intarg(i8 %a0, ; %i0
+ i8 %a1, ; %i1
+ i16 %a2, ; %i2
+ i32 %a3, ; %i3
+ i8* %a4, ; %i4
+ i32 %a5, ; %i5
+ i32 signext %a6, ; [%fp+BIAS+176]
+ i8* %a7) { ; [%fp+BIAS+184]
+ store i8 %a0, i8* %a4
+ store i8 %a1, i8* %a4
+ %p16 = bitcast i8* %a4 to i16*
+ store i16 %a2, i16* %p16
+ %p32 = bitcast i8* %a4 to i32*
+ store i32 %a3, i32* %p32
+ %pp = bitcast i8* %a4 to i8**
+ store i8* %a4, i8** %pp
+ store i32 %a5, i32* %p32
+ store i32 %a6, i32* %p32
+ store i8* %a7, i8** %pp
+ ret void
+}
+
+; CHECK: call_intarg
+; 16 saved + 8 args.
+; CHECK: save %sp, -192, %sp
+; Sign-extend and store the full 64 bits.
+; CHECK: sra %i0, 0, [[R:%[gilo][0-7]]]
+; CHECK: stx [[R]], [%sp+2223]
+; Use %o0-%o5 for outgoing arguments
+; CHECK: or %g0, 5, %o5
+; CHECK: call intarg
+; CHECK-NOT: add %sp
+; CHECK: restore
+define void @call_intarg(i32 %i0, i8* %i1) {
+ call void @intarg(i8 0, i8 1, i16 2, i32 3, i8* undef, i32 5, i32 %i0, i8* %i1)
+ ret void
+}
+
+; CHECK: floatarg
+; CHECK: save %sp, -128, %sp
+; CHECK: fstod %f1,
+; CHECK: faddd %f2,
+; CHECK: faddd %f4,
+; CHECK: faddd %f6,
+; CHECK: ld [%fp+2307], [[F:%f[0-9]+]]
+; CHECK: fadds %f31, [[F]]
+define double @floatarg(float %a0, ; %f1
+ double %a1, ; %d2
+ double %a2, ; %d4
+ double %a3, ; %d6
+ float %a4, ; %f9
+ float %a5, ; %f11
+ float %a6, ; %f13
+ float %a7, ; %f15
+ float %a8, ; %f17
+ float %a9, ; %f19
+ float %a10, ; %f21
+ float %a11, ; %f23
+ float %a12, ; %f25
+ float %a13, ; %f27
+ float %a14, ; %f29
+ float %a15, ; %f31
+ float %a16, ; [%fp+BIAS+256] (using 8 bytes)
+ double %a17) { ; [%fp+BIAS+264] (using 8 bytes)
+ %d0 = fpext float %a0 to double
+ %s1 = fadd double %a1, %d0
+ %s2 = fadd double %a2, %s1
+ %s3 = fadd double %a3, %s2
+ %s16 = fadd float %a15, %a16
+ %d16 = fpext float %s16 to double
+ %s17 = fadd double %d16, %s3
+ ret double %s17
+}
+
+; CHECK: call_floatarg
+; CHECK: save %sp, -272, %sp
+; Store 4 bytes, right-aligned in slot.
+; CHECK: st %f1, [%sp+2307]
+; Store 8 bytes in full slot.
+; CHECK: std %f2, [%sp+2311]
+; CHECK: fmovd %f2, %f4
+; CHECK: call floatarg
+; CHECK-NOT: add %sp
+; CHECK: restore
+define void @call_floatarg(float %f1, double %d2, float %f5, double *%p) {
+ %r = call double @floatarg(float %f5, double %d2, double %d2, double %d2,
+ float %f5, float %f5, float %f5, float %f5,
+ float %f5, float %f5, float %f5, float %f5,
+ float %f5, float %f5, float %f5, float %f5,
+ float %f1, double %d2)
+ store double %r, double* %p
+ ret void
+}
+
+; CHECK: mixedarg
+; CHECK: fstod %f3
+; CHECK: faddd %f6
+; CHECK: faddd %f16
+; CHECK: ldx [%fp+2231]
+; CHECK: ldx [%fp+2247]
+define void @mixedarg(i8 %a0, ; %i0
+ float %a1, ; %f3
+ i16 %a2, ; %i2
+ double %a3, ; %d6
+ i13 %a4, ; %i4
+ float %a5, ; %f11
+ i64 %a6, ; [%fp+BIAS+176]
+ double *%a7, ; [%fp+BIAS+184]
+ double %a8, ; %d16
+ i16* %a9) { ; [%fp+BIAS+200]
+ %d1 = fpext float %a1 to double
+ %s3 = fadd double %a3, %d1
+ %s8 = fadd double %a8, %s3
+ store double %s8, double* %a7
+ store i16 %a2, i16* %a9
+ ret void
+}
+
+; CHECK: call_mixedarg
+; CHECK: stx %i2, [%sp+2247]
+; CHECK: stx %i0, [%sp+2223]
+; CHECK: fmovd %f2, %f6
+; CHECK: fmovd %f2, %f16
+; CHECK: call mixedarg
+; CHECK-NOT: add %sp
+; CHECK: restore
+define void @call_mixedarg(i64 %i0, double %f2, i16* %i2) {
+ call void @mixedarg(i8 undef,
+ float undef,
+ i16 undef,
+ double %f2,
+ i13 undef,
+ float undef,
+ i64 %i0,
+ double* undef,
+ double %f2,
+ i16* %i2)
+ ret void
+}
+
+; The inreg attribute is used to indicate 32-bit sized struct elements that
+; share an 8-byte slot.
+; CHECK: inreg_fi
+; CHECK: fstoi %f1
+; CHECK: srlx %i0, 32, [[R:%[gilo][0-7]]]
+; CHECK: sub [[R]],
+define i32 @inreg_fi(i32 inreg %a0, ; high bits of %i0
+ float inreg %a1) { ; %f1
+ %b1 = fptosi float %a1 to i32
+ %rv = sub i32 %a0, %b1
+ ret i32 %rv
+}
+
+; CHECK: call_inreg_fi
+; Allocate space for 6 arguments, even when only 2 are used.
+; CHECK: save %sp, -176, %sp
+; CHECK: sllx %i1, 32, %o0
+; CHECK: fmovs %f5, %f1
+; CHECK: call inreg_fi
+define void @call_inreg_fi(i32* %p, i32 %i1, float %f5) {
+ %x = call i32 @inreg_fi(i32 %i1, float %f5)
+ ret void
+}
+
+; CHECK: inreg_ff
+; CHECK: fsubs %f0, %f1, %f1
+define float @inreg_ff(float inreg %a0, ; %f0
+ float inreg %a1) { ; %f1
+ %rv = fsub float %a0, %a1
+ ret float %rv
+}
+
+; CHECK: call_inreg_ff
+; CHECK: fmovs %f3, %f0
+; CHECK: fmovs %f5, %f1
+; CHECK: call inreg_ff
+define void @call_inreg_ff(i32* %p, float %f3, float %f5) {
+ %x = call float @inreg_ff(float %f3, float %f5)
+ ret void
+}
+
+; CHECK: inreg_if
+; CHECK: fstoi %f0
+; CHECK: sub %i0
+define i32 @inreg_if(float inreg %a0, ; %f0
+ i32 inreg %a1) { ; low bits of %i0
+ %b0 = fptosi float %a0 to i32
+ %rv = sub i32 %a1, %b0
+ ret i32 %rv
+}
+
+; CHECK: call_inreg_if
+; CHECK: fmovs %f3, %f0
+; CHECK: or %g0, %i2, %o0
+; CHECK: call inreg_if
+define void @call_inreg_if(i32* %p, float %f3, i32 %i2) {
+ %x = call i32 @inreg_if(float %f3, i32 %i2)
+ ret void
+}
+
+; The frontend shouldn't do this. Just pass i64 instead.
+; CHECK: inreg_ii
+; CHECK: srlx %i0, 32, [[R:%[gilo][0-7]]]
+; CHECK: sub %i0, [[R]], %i0
+define i32 @inreg_ii(i32 inreg %a0, ; high bits of %i0
+ i32 inreg %a1) { ; low bits of %i0
+ %rv = sub i32 %a1, %a0
+ ret i32 %rv
+}
+
+; CHECK: call_inreg_ii
+; CHECK: srl %i2, 0, [[R2:%[gilo][0-7]]]
+; CHECK: sllx %i1, 32, [[R1:%[gilo][0-7]]]
+; CHECK: or [[R1]], [[R2]], %o0
+; CHECK: call inreg_ii
+define void @call_inreg_ii(i32* %p, i32 %i1, i32 %i2) {
+ %x = call i32 @inreg_ii(i32 %i1, i32 %i2)
+ ret void
+}
+
+; Structs up to 32 bytes in size can be returned in registers.
+; CHECK: ret_i64_pair
+; CHECK: ldx [%i2], %i0
+; CHECK: ldx [%i3], %i1
+define { i64, i64 } @ret_i64_pair(i32 %a0, i32 %a1, i64* %p, i64* %q) {
+ %r1 = load i64* %p
+ %rv1 = insertvalue { i64, i64 } undef, i64 %r1, 0
+ store i64 0, i64* %p
+ %r2 = load i64* %q
+ %rv2 = insertvalue { i64, i64 } %rv1, i64 %r2, 1
+ ret { i64, i64 } %rv2
+}
+
+; CHECK: call_ret_i64_pair
+; CHECK: call ret_i64_pair
+; CHECK: stx %o0, [%i0]
+; CHECK: stx %o1, [%i0]
+define void @call_ret_i64_pair(i64* %i0) {
+ %rv = call { i64, i64 } @ret_i64_pair(i32 undef, i32 undef,
+ i64* undef, i64* undef)
+ %e0 = extractvalue { i64, i64 } %rv, 0
+ store i64 %e0, i64* %i0
+ %e1 = extractvalue { i64, i64 } %rv, 1
+ store i64 %e1, i64* %i0
+ ret void
+}
+
+; This is not a C struct, each member uses 8 bytes.
+; CHECK: ret_i32_float_pair
+; CHECK: ld [%i2], %i0
+; CHECK: ld [%i3], %f3
+define { i32, float } @ret_i32_float_pair(i32 %a0, i32 %a1,
+ i32* %p, float* %q) {
+ %r1 = load i32* %p
+ %rv1 = insertvalue { i32, float } undef, i32 %r1, 0
+ store i32 0, i32* %p
+ %r2 = load float* %q
+ %rv2 = insertvalue { i32, float } %rv1, float %r2, 1
+ ret { i32, float } %rv2
+}
+
+; CHECK: call_ret_i32_float_pair
+; CHECK: call ret_i32_float_pair
+; CHECK: st %o0, [%i0]
+; CHECK: st %f3, [%i1]
+define void @call_ret_i32_float_pair(i32* %i0, float* %i1) {
+ %rv = call { i32, float } @ret_i32_float_pair(i32 undef, i32 undef,
+ i32* undef, float* undef)
+ %e0 = extractvalue { i32, float } %rv, 0
+ store i32 %e0, i32* %i0
+ %e1 = extractvalue { i32, float } %rv, 1
+ store float %e1, float* %i1
+ ret void
+}
+
+; This is a C struct, each member uses 4 bytes.
+; CHECK: ret_i32_float_packed
+; CHECK: ld [%i2], [[R:%[gilo][0-7]]]
+; CHECK: sllx [[R]], 32, %i0
+; CHECK: ld [%i3], %f1
+define inreg { i32, float } @ret_i32_float_packed(i32 %a0, i32 %a1,
+ i32* %p, float* %q) {
+ %r1 = load i32* %p
+ %rv1 = insertvalue { i32, float } undef, i32 %r1, 0
+ store i32 0, i32* %p
+ %r2 = load float* %q
+ %rv2 = insertvalue { i32, float } %rv1, float %r2, 1
+ ret { i32, float } %rv2
+}
+
+; CHECK: call_ret_i32_float_packed
+; CHECK: call ret_i32_float_packed
+; CHECK: srlx %o0, 32, [[R:%[gilo][0-7]]]
+; CHECK: st [[R]], [%i0]
+; CHECK: st %f1, [%i1]
+define void @call_ret_i32_float_packed(i32* %i0, float* %i1) {
+ %rv = call { i32, float } @ret_i32_float_packed(i32 undef, i32 undef,
+ i32* undef, float* undef)
+ %e0 = extractvalue { i32, float } %rv, 0
+ store i32 %e0, i32* %i0
+ %e1 = extractvalue { i32, float } %rv, 1
+ store float %e1, float* %i1
+ ret void
+}
+
+; The C frontend should use i64 to return { i32, i32 } structs, but verify that
+; we don't miscompile thi case where both struct elements are placed in %i0.
+; CHECK: ret_i32_packed
+; CHECK: ld [%i2], [[R1:%[gilo][0-7]]]
+; CHECK: ld [%i3], [[R2:%[gilo][0-7]]]
+; CHECK: sllx [[R2]], 32, [[R3:%[gilo][0-7]]]
+; CHECK: or [[R3]], [[R1]], %i0
+define inreg { i32, i32 } @ret_i32_packed(i32 %a0, i32 %a1,
+ i32* %p, i32* %q) {
+ %r1 = load i32* %p
+ %rv1 = insertvalue { i32, i32 } undef, i32 %r1, 1
+ store i32 0, i32* %p
+ %r2 = load i32* %q
+ %rv2 = insertvalue { i32, i32 } %rv1, i32 %r2, 0
+ ret { i32, i32 } %rv2
+}
+
+; CHECK: call_ret_i32_packed
+; CHECK: call ret_i32_packed
+; CHECK: srlx %o0, 32, [[R:%[gilo][0-7]]]
+; CHECK: st [[R]], [%i0]
+; CHECK: st %o0, [%i1]
+define void @call_ret_i32_packed(i32* %i0, i32* %i1) {
+ %rv = call { i32, i32 } @ret_i32_packed(i32 undef, i32 undef,
+ i32* undef, i32* undef)
+ %e0 = extractvalue { i32, i32 } %rv, 0
+ store i32 %e0, i32* %i0
+ %e1 = extractvalue { i32, i32 } %rv, 1
+ store i32 %e1, i32* %i1
+ ret void
+}
+
+; The return value must be sign-extended to 64 bits.
+; CHECK: ret_sext
+; CHECK: sra %i0, 0, %i0
+define signext i32 @ret_sext(i32 %a0) {
+ ret i32 %a0
+}
+
+; CHECK: ret_zext
+; CHECK: srl %i0, 0, %i0
+define zeroext i32 @ret_zext(i32 %a0) {
+ ret i32 %a0
+}
+
+; CHECK: ret_nosext
+; CHECK-NOT: sra
+define signext i32 @ret_nosext(i32 signext %a0) {
+ ret i32 %a0
+}
+
+; CHECK: ret_nozext
+; CHECK-NOT: srl
+define signext i32 @ret_nozext(i32 signext %a0) {
+ ret i32 %a0
+}
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