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-rw-r--r--test/CodeGen/X86/memcmp.ll446
1 files changed, 342 insertions, 104 deletions
diff --git a/test/CodeGen/X86/memcmp.ll b/test/CodeGen/X86/memcmp.ll
index 6a51d60f636c..ce1bb3b06ce5 100644
--- a/test/CodeGen/X86/memcmp.ll
+++ b/test/CodeGen/X86/memcmp.ll
@@ -1,130 +1,368 @@
-; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
-; RUN: llc < %s -disable-simplify-libcalls -mtriple=x86_64-linux | FileCheck %s --check-prefix=NOBUILTIN
-; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefix=X32
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64 --check-prefix=SSE2
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=AVX2 | FileCheck %s --check-prefix=X64 --check-prefix=AVX2
; This tests codegen time inlining/optimization of memcmp
; rdar://6480398
-@.str = private constant [23 x i8] c"fooooooooooooooooooooo\00", align 1 ; <[23 x i8]*> [#uses=1]
+@.str = private constant [65 x i8] c"0123456789012345678901234567890123456789012345678901234567890123\00", align 1
-declare i32 @memcmp(...)
+declare i32 @memcmp(i8*, i8*, i64)
-define void @memcmp2(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
-entry:
- %0 = tail call i32 (...) @memcmp(i8* %X, i8* %Y, i32 2) nounwind ; <i32> [#uses=1]
- %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
- br i1 %1, label %return, label %bb
-
-bb: ; preds = %entry
- store i32 4, i32* %P, align 4
- ret void
-
-return: ; preds = %entry
- ret void
-; CHECK-LABEL: memcmp2:
-; CHECK: movzwl
-; CHECK-NEXT: cmpw
-; NOBUILTIN-LABEL: memcmp2:
-; NOBUILTIN: callq
+define i1 @length2(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
+; X32-LABEL: length2:
+; X32: # BB#0:
+; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X32-NEXT: movzwl (%ecx), %ecx
+; X32-NEXT: cmpw (%eax), %cx
+; X32-NEXT: sete %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length2:
+; X64: # BB#0:
+; X64-NEXT: movzwl (%rdi), %eax
+; X64-NEXT: cmpw (%rsi), %ax
+; X64-NEXT: sete %al
+; X64-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind
+ %c = icmp eq i32 %m, 0
+ ret i1 %c
}
-define void @memcmp2a(i8* %X, i32* nocapture %P) nounwind {
-entry:
- %0 = tail call i32 (...) @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 1), i32 2) nounwind ; <i32> [#uses=1]
- %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
- br i1 %1, label %return, label %bb
-
-bb: ; preds = %entry
- store i32 4, i32* %P, align 4
- ret void
-
-return: ; preds = %entry
- ret void
-; CHECK-LABEL: memcmp2a:
-; CHECK: movzwl
-; CHECK-NEXT: cmpl $28527,
+define i1 @length2_const(i8* %X, i32* nocapture %P) nounwind {
+; X32-LABEL: length2_const:
+; X32: # BB#0:
+; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X32-NEXT: movzwl (%eax), %eax
+; X32-NEXT: cmpl $12849, %eax # imm = 0x3231
+; X32-NEXT: setne %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length2_const:
+; X64: # BB#0:
+; X64-NEXT: movzwl (%rdi), %eax
+; X64-NEXT: cmpl $12849, %eax # imm = 0x3231
+; X64-NEXT: setne %al
+; X64-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 2) nounwind
+ %c = icmp ne i32 %m, 0
+ ret i1 %c
}
-define void @memcmp2nb(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
-entry:
- %0 = tail call i32 (...) @memcmp(i8* %X, i8* %Y, i32 2) nounwind nobuiltin ; <i32> [#uses=1]
- %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
- br i1 %1, label %return, label %bb
-
-bb: ; preds = %entry
- store i32 4, i32* %P, align 4
- ret void
-
-return: ; preds = %entry
- ret void
-; CHECK-LABEL: memcmp2nb:
-; CHECK: callq
+define i1 @length2_nobuiltin_attr(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
+; X32-LABEL: length2_nobuiltin_attr:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $2
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: sete %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length2_nobuiltin_attr:
+; X64: # BB#0:
+; X64-NEXT: pushq %rax
+; X64-NEXT: movl $2, %edx
+; X64-NEXT: callq memcmp
+; X64-NEXT: testl %eax, %eax
+; X64-NEXT: sete %al
+; X64-NEXT: popq %rcx
+; X64-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind nobuiltin
+ %c = icmp eq i32 %m, 0
+ ret i1 %c
}
-define void @memcmp4(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
-entry:
- %0 = tail call i32 (...) @memcmp(i8* %X, i8* %Y, i32 4) nounwind ; <i32> [#uses=1]
- %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
- br i1 %1, label %return, label %bb
-
-bb: ; preds = %entry
- store i32 4, i32* %P, align 4
- ret void
-
-return: ; preds = %entry
- ret void
-; CHECK-LABEL: memcmp4:
-; CHECK: movl
-; CHECK-NEXT: cmpl
+define i1 @length4(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
+; X32-LABEL: length4:
+; X32: # BB#0:
+; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X32-NEXT: movl (%ecx), %ecx
+; X32-NEXT: cmpl (%eax), %ecx
+; X32-NEXT: setne %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length4:
+; X64: # BB#0:
+; X64-NEXT: movl (%rdi), %eax
+; X64-NEXT: cmpl (%rsi), %eax
+; X64-NEXT: setne %al
+; X64-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind
+ %c = icmp ne i32 %m, 0
+ ret i1 %c
}
-define void @memcmp4a(i8* %X, i32* nocapture %P) nounwind {
-entry:
- %0 = tail call i32 (...) @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 1), i32 4) nounwind ; <i32> [#uses=1]
- %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
- br i1 %1, label %return, label %bb
+define i1 @length4_const(i8* %X, i32* nocapture %P) nounwind {
+; X32-LABEL: length4_const:
+; X32: # BB#0:
+; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X32-NEXT: cmpl $875770417, (%eax) # imm = 0x34333231
+; X32-NEXT: sete %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length4_const:
+; X64: # BB#0:
+; X64-NEXT: cmpl $875770417, (%rdi) # imm = 0x34333231
+; X64-NEXT: sete %al
+; X64-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 4) nounwind
+ %c = icmp eq i32 %m, 0
+ ret i1 %c
+}
-bb: ; preds = %entry
- store i32 4, i32* %P, align 4
- ret void
+define i1 @length8(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
+; X32-LABEL: length8:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $8
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: sete %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length8:
+; X64: # BB#0:
+; X64-NEXT: movq (%rdi), %rax
+; X64-NEXT: cmpq (%rsi), %rax
+; X64-NEXT: sete %al
+; X64-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind
+ %c = icmp eq i32 %m, 0
+ ret i1 %c
+}
-return: ; preds = %entry
- ret void
-; CHECK-LABEL: memcmp4a:
-; CHECK: cmpl $1869573999,
+define i1 @length8_const(i8* %X, i32* nocapture %P) nounwind {
+; X32-LABEL: length8_const:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $8
+; X32-NEXT: pushl $.L.str
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: setne %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length8_const:
+; X64: # BB#0:
+; X64-NEXT: movabsq $3978425819141910832, %rax # imm = 0x3736353433323130
+; X64-NEXT: cmpq %rax, (%rdi)
+; X64-NEXT: setne %al
+; X64-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 8) nounwind
+ %c = icmp ne i32 %m, 0
+ ret i1 %c
}
-define void @memcmp8(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
-entry:
- %0 = tail call i32 (...) @memcmp(i8* %X, i8* %Y, i32 8) nounwind ; <i32> [#uses=1]
- %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
- br i1 %1, label %return, label %bb
+define i1 @length16(i8* %x, i8* %y) nounwind {
+; X32-LABEL: length16:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $16
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: setne %al
+; X32-NEXT: retl
+;
+; SSE2-LABEL: length16:
+; SSE2: # BB#0:
+; SSE2-NEXT: movdqu (%rsi), %xmm0
+; SSE2-NEXT: movdqu (%rdi), %xmm1
+; SSE2-NEXT: pcmpeqb %xmm0, %xmm1
+; SSE2-NEXT: pmovmskb %xmm1, %eax
+; SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
+; SSE2-NEXT: setne %al
+; SSE2-NEXT: retq
+;
+; AVX2-LABEL: length16:
+; AVX2: # BB#0:
+; AVX2-NEXT: vmovdqu (%rdi), %xmm0
+; AVX2-NEXT: vpcmpeqb (%rsi), %xmm0, %xmm0
+; AVX2-NEXT: vpmovmskb %xmm0, %eax
+; AVX2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
+; AVX2-NEXT: setne %al
+; AVX2-NEXT: retq
+ %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) nounwind
+ %cmp = icmp ne i32 %call, 0
+ ret i1 %cmp
+}
-bb: ; preds = %entry
- store i32 4, i32* %P, align 4
- ret void
+define i1 @length16_const(i8* %X, i32* nocapture %P) nounwind {
+; X32-LABEL: length16_const:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $16
+; X32-NEXT: pushl $.L.str
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: sete %al
+; X32-NEXT: retl
+;
+; SSE2-LABEL: length16_const:
+; SSE2: # BB#0:
+; SSE2-NEXT: movdqu (%rdi), %xmm0
+; SSE2-NEXT: pcmpeqb {{.*}}(%rip), %xmm0
+; SSE2-NEXT: pmovmskb %xmm0, %eax
+; SSE2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
+; SSE2-NEXT: sete %al
+; SSE2-NEXT: retq
+;
+; AVX2-LABEL: length16_const:
+; AVX2: # BB#0:
+; AVX2-NEXT: vmovdqu (%rdi), %xmm0
+; AVX2-NEXT: vpcmpeqb {{.*}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT: vpmovmskb %xmm0, %eax
+; AVX2-NEXT: cmpl $65535, %eax # imm = 0xFFFF
+; AVX2-NEXT: sete %al
+; AVX2-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 16) nounwind
+ %c = icmp eq i32 %m, 0
+ ret i1 %c
+}
-return: ; preds = %entry
- ret void
-; CHECK-LABEL: memcmp8:
-; CHECK: movq
-; CHECK: cmpq
+define i1 @length32(i8* %x, i8* %y) nounwind {
+; X32-LABEL: length32:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $32
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: sete %al
+; X32-NEXT: retl
+;
+; SSE2-LABEL: length32:
+; SSE2: # BB#0:
+; SSE2-NEXT: pushq %rax
+; SSE2-NEXT: movl $32, %edx
+; SSE2-NEXT: callq memcmp
+; SSE2-NEXT: testl %eax, %eax
+; SSE2-NEXT: sete %al
+; SSE2-NEXT: popq %rcx
+; SSE2-NEXT: retq
+;
+; AVX2-LABEL: length32:
+; AVX2: # BB#0:
+; AVX2-NEXT: vmovdqu (%rdi), %ymm0
+; AVX2-NEXT: vpcmpeqb (%rsi), %ymm0, %ymm0
+; AVX2-NEXT: vpmovmskb %ymm0, %eax
+; AVX2-NEXT: cmpl $-1, %eax
+; AVX2-NEXT: sete %al
+; AVX2-NEXT: vzeroupper
+; AVX2-NEXT: retq
+ %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 32) nounwind
+ %cmp = icmp eq i32 %call, 0
+ ret i1 %cmp
}
-define void @memcmp8a(i8* %X, i32* nocapture %P) nounwind {
-entry:
- %0 = tail call i32 (...) @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0), i32 8) nounwind ; <i32> [#uses=1]
- %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
- br i1 %1, label %return, label %bb
+define i1 @length32_const(i8* %X, i32* nocapture %P) nounwind {
+; X32-LABEL: length32_const:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $32
+; X32-NEXT: pushl $.L.str
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: setne %al
+; X32-NEXT: retl
+;
+; SSE2-LABEL: length32_const:
+; SSE2: # BB#0:
+; SSE2-NEXT: pushq %rax
+; SSE2-NEXT: movl $.L.str, %esi
+; SSE2-NEXT: movl $32, %edx
+; SSE2-NEXT: callq memcmp
+; SSE2-NEXT: testl %eax, %eax
+; SSE2-NEXT: setne %al
+; SSE2-NEXT: popq %rcx
+; SSE2-NEXT: retq
+;
+; AVX2-LABEL: length32_const:
+; AVX2: # BB#0:
+; AVX2-NEXT: vmovdqu (%rdi), %ymm0
+; AVX2-NEXT: vpcmpeqb {{.*}}(%rip), %ymm0, %ymm0
+; AVX2-NEXT: vpmovmskb %ymm0, %eax
+; AVX2-NEXT: cmpl $-1, %eax
+; AVX2-NEXT: setne %al
+; AVX2-NEXT: vzeroupper
+; AVX2-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 32) nounwind
+ %c = icmp ne i32 %m, 0
+ ret i1 %c
+}
-bb: ; preds = %entry
- store i32 4, i32* %P, align 4
- ret void
+define i1 @length64(i8* %x, i8* %y) nounwind {
+; X32-LABEL: length64:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $64
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: setne %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length64:
+; X64: # BB#0:
+; X64-NEXT: pushq %rax
+; X64-NEXT: movl $64, %edx
+; X64-NEXT: callq memcmp
+; X64-NEXT: testl %eax, %eax
+; X64-NEXT: setne %al
+; X64-NEXT: popq %rcx
+; X64-NEXT: retq
+ %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 64) nounwind
+ %cmp = icmp ne i32 %call, 0
+ ret i1 %cmp
+}
-return: ; preds = %entry
- ret void
-; CHECK-LABEL: memcmp8a:
-; CHECK: movabsq $8029759185026510694,
-; CHECK: cmpq
+define i1 @length64_const(i8* %X, i32* nocapture %P) nounwind {
+; X32-LABEL: length64_const:
+; X32: # BB#0:
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $64
+; X32-NEXT: pushl $.L.str
+; X32-NEXT: pushl {{[0-9]+}}(%esp)
+; X32-NEXT: calll memcmp
+; X32-NEXT: addl $16, %esp
+; X32-NEXT: testl %eax, %eax
+; X32-NEXT: sete %al
+; X32-NEXT: retl
+;
+; X64-LABEL: length64_const:
+; X64: # BB#0:
+; X64-NEXT: pushq %rax
+; X64-NEXT: movl $.L.str, %esi
+; X64-NEXT: movl $64, %edx
+; X64-NEXT: callq memcmp
+; X64-NEXT: testl %eax, %eax
+; X64-NEXT: sete %al
+; X64-NEXT: popq %rcx
+; X64-NEXT: retq
+ %m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 64) nounwind
+ %c = icmp eq i32 %m, 0
+ ret i1 %c
}
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