forked from OSchip/llvm-project
[x86] add memcmp tests, remove run
Add tests for vector lengths that could be handled without a libcall. There's an explicit test for 'nobuiltin', so there's not much value in a separate run that checks that same behavior over and over again. llvm-svn: 298611
This commit is contained in:
Sanjay Patel
parent
1aa207d451
commit
8db22f9032
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@ -1,190 +1,188 @@
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=ALL --check-prefix=BUILTIN
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; RUN: llc < %s -disable-simplify-libcalls -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=ALL --check-prefix=NOBUILTIN
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
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; This tests codegen time inlining/optimization of memcmp
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; rdar://6480398
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@.str = private constant [23 x i8] c"fooooooooooooooooooooo\00", align 1
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@.str = private constant [65 x i8] c"0123456789012345678901234567890123456789012345678901234567890123\00", align 1
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declare i32 @memcmp(i8*, i8*, i64)
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define i1 @two_bytes(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; BUILTIN-LABEL: two_bytes:
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; BUILTIN: # BB#0:
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; BUILTIN-NEXT: movzwl (%rdi), %eax
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; BUILTIN-NEXT: cmpw (%rsi), %ax
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; BUILTIN-NEXT: sete %al
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; BUILTIN-NEXT: retq
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;
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; NOBUILTIN-LABEL: two_bytes:
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; NOBUILTIN: # BB#0:
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; NOBUILTIN-NEXT: pushq %rax
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; NOBUILTIN-NEXT: movl $2, %edx
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; NOBUILTIN-NEXT: callq memcmp
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; NOBUILTIN-NEXT: testl %eax, %eax
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; NOBUILTIN-NEXT: sete %al
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; NOBUILTIN-NEXT: popq %rcx
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; NOBUILTIN-NEXT: retq
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define i1 @length2(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length2:
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; CHECK: # BB#0:
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; CHECK-NEXT: movzwl (%rdi), %eax
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; CHECK-NEXT: cmpw (%rsi), %ax
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; CHECK-NEXT: sete %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @two_bytes_const(i8* %X, i32* nocapture %P) nounwind {
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; BUILTIN-LABEL: two_bytes_const:
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; BUILTIN: # BB#0:
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; BUILTIN-NEXT: movzwl (%rdi), %eax
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; BUILTIN-NEXT: cmpl $28527, %eax # imm = 0x6F6F
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; BUILTIN-NEXT: setne %al
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; BUILTIN-NEXT: retq
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;
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; NOBUILTIN-LABEL: two_bytes_const:
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; NOBUILTIN: # BB#0:
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; NOBUILTIN-NEXT: pushq %rax
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; NOBUILTIN-NEXT: movl $.L.str+1, %esi
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; NOBUILTIN-NEXT: movl $2, %edx
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; NOBUILTIN-NEXT: callq memcmp
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; NOBUILTIN-NEXT: testl %eax, %eax
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; NOBUILTIN-NEXT: setne %al
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; NOBUILTIN-NEXT: popq %rcx
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; NOBUILTIN-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 1), i64 2) nounwind
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define i1 @length2_const(i8* %X, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length2_const:
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; CHECK: # BB#0:
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; CHECK-NEXT: movzwl (%rdi), %eax
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; CHECK-NEXT: cmpl $12849, %eax # imm = 0x3231
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; CHECK-NEXT: setne %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 2) nounwind
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%c = icmp ne i32 %m, 0
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ret i1 %c
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}
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define i1 @two_bytes_nobuiltin_attr(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; ALL-LABEL: two_bytes_nobuiltin_attr:
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; ALL: # BB#0:
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; ALL-NEXT: pushq %rax
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; ALL-NEXT: movl $2, %edx
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; ALL-NEXT: callq memcmp
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; ALL-NEXT: testl %eax, %eax
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; ALL-NEXT: sete %al
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; ALL-NEXT: popq %rcx
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; ALL-NEXT: retq
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define i1 @length2_nobuiltin_attr(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length2_nobuiltin_attr:
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; CHECK: # BB#0:
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: movl $2, %edx
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; CHECK-NEXT: callq memcmp
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: sete %al
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 2) nounwind nobuiltin
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @four_bytes(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; BUILTIN-LABEL: four_bytes:
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; BUILTIN: # BB#0:
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; BUILTIN-NEXT: movl (%rdi), %eax
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; BUILTIN-NEXT: cmpl (%rsi), %eax
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; BUILTIN-NEXT: setne %al
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; BUILTIN-NEXT: retq
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;
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; NOBUILTIN-LABEL: four_bytes:
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; NOBUILTIN: # BB#0:
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; NOBUILTIN-NEXT: pushq %rax
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; NOBUILTIN-NEXT: movl $4, %edx
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; NOBUILTIN-NEXT: callq memcmp
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; NOBUILTIN-NEXT: testl %eax, %eax
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; NOBUILTIN-NEXT: setne %al
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; NOBUILTIN-NEXT: popq %rcx
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; NOBUILTIN-NEXT: retq
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define i1 @length4(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length4:
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; CHECK: # BB#0:
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; CHECK-NEXT: movl (%rdi), %eax
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; CHECK-NEXT: cmpl (%rsi), %eax
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; CHECK-NEXT: setne %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 4) nounwind
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%c = icmp ne i32 %m, 0
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ret i1 %c
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}
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define i1 @four_bytes_const(i8* %X, i32* nocapture %P) nounwind {
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; BUILTIN-LABEL: four_bytes_const:
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; BUILTIN: # BB#0:
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; BUILTIN-NEXT: cmpl $1869573999, (%rdi) # imm = 0x6F6F6F6F
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; BUILTIN-NEXT: sete %al
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; BUILTIN-NEXT: retq
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;
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; NOBUILTIN-LABEL: four_bytes_const:
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; NOBUILTIN: # BB#0:
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; NOBUILTIN-NEXT: pushq %rax
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; NOBUILTIN-NEXT: movl $.L.str+1, %esi
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; NOBUILTIN-NEXT: movl $4, %edx
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; NOBUILTIN-NEXT: callq memcmp
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; NOBUILTIN-NEXT: testl %eax, %eax
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; NOBUILTIN-NEXT: sete %al
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; NOBUILTIN-NEXT: popq %rcx
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; NOBUILTIN-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 1), i64 4) nounwind
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define i1 @length4_const(i8* %X, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length4_const:
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; CHECK: # BB#0:
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; CHECK-NEXT: cmpl $875770417, (%rdi) # imm = 0x34333231
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; CHECK-NEXT: sete %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 1), i64 4) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @eight_bytes(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; BUILTIN-LABEL: eight_bytes:
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; BUILTIN: # BB#0:
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; BUILTIN-NEXT: movq (%rdi), %rax
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; BUILTIN-NEXT: cmpq (%rsi), %rax
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; BUILTIN-NEXT: sete %al
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; BUILTIN-NEXT: retq
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;
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; NOBUILTIN-LABEL: eight_bytes:
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; NOBUILTIN: # BB#0:
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; NOBUILTIN-NEXT: pushq %rax
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; NOBUILTIN-NEXT: movl $8, %edx
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; NOBUILTIN-NEXT: callq memcmp
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; NOBUILTIN-NEXT: testl %eax, %eax
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; NOBUILTIN-NEXT: sete %al
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; NOBUILTIN-NEXT: popq %rcx
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; NOBUILTIN-NEXT: retq
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define i1 @length8(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length8:
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; CHECK: # BB#0:
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; CHECK-NEXT: movq (%rdi), %rax
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; CHECK-NEXT: cmpq (%rsi), %rax
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; CHECK-NEXT: sete %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* %Y, i64 8) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @eight_bytes_const(i8* %X, i32* nocapture %P) nounwind {
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; BUILTIN-LABEL: eight_bytes_const:
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; BUILTIN: # BB#0:
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; BUILTIN-NEXT: movabsq $8029759185026510694, %rax # imm = 0x6F6F6F6F6F6F6F66
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; BUILTIN-NEXT: cmpq %rax, (%rdi)
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; BUILTIN-NEXT: setne %al
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; BUILTIN-NEXT: retq
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;
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; NOBUILTIN-LABEL: eight_bytes_const:
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; NOBUILTIN: # BB#0:
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; NOBUILTIN-NEXT: pushq %rax
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; NOBUILTIN-NEXT: movl $.L.str, %esi
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; NOBUILTIN-NEXT: movl $8, %edx
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; NOBUILTIN-NEXT: callq memcmp
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; NOBUILTIN-NEXT: testl %eax, %eax
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; NOBUILTIN-NEXT: setne %al
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; NOBUILTIN-NEXT: popq %rcx
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; NOBUILTIN-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0), i64 8) nounwind
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define i1 @length8_const(i8* %X, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length8_const:
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; CHECK: # BB#0:
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; CHECK-NEXT: movabsq $3978425819141910832, %rax # imm = 0x3736353433323130
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; CHECK-NEXT: cmpq %rax, (%rdi)
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; CHECK-NEXT: setne %al
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 8) nounwind
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%c = icmp ne i32 %m, 0
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ret i1 %c
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}
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define i1 @sixteen_bytes(i8* %x, i8* %y) nounwind {
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; ALL-LABEL: sixteen_bytes:
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; ALL: # BB#0:
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; ALL-NEXT: pushq %rax
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; ALL-NEXT: movl $16, %edx
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; ALL-NEXT: callq memcmp
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; ALL-NEXT: testl %eax, %eax
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; ALL-NEXT: setne %al
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; ALL-NEXT: popq %rcx
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; ALL-NEXT: retq
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define i1 @length16(i8* %x, i8* %y) nounwind {
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; CHECK-LABEL: length16:
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; CHECK: # BB#0:
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: movl $16, %edx
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; CHECK-NEXT: callq memcmp
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: setne %al
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: retq
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%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) nounwind
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%cmp = icmp ne i32 %call, 0
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ret i1 %cmp
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}
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define i1 @sixteen_bytes_const(i8* %X, i32* nocapture %P) nounwind {
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; ALL-LABEL: sixteen_bytes_const:
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; ALL: # BB#0:
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; ALL-NEXT: pushq %rax
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; ALL-NEXT: movl $.L.str, %esi
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; ALL-NEXT: movl $16, %edx
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; ALL-NEXT: callq memcmp
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; ALL-NEXT: testl %eax, %eax
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; ALL-NEXT: sete %al
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; ALL-NEXT: popq %rcx
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; ALL-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0), i64 16) nounwind
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define i1 @length16_const(i8* %X, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length16_const:
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; CHECK: # BB#0:
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: movl $.L.str, %esi
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; CHECK-NEXT: movl $16, %edx
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; CHECK-NEXT: callq memcmp
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: sete %al
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 16) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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define i1 @length32(i8* %x, i8* %y) nounwind {
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; CHECK-LABEL: length32:
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; CHECK: # BB#0:
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: movl $32, %edx
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; CHECK-NEXT: callq memcmp
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: sete %al
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: retq
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%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 32) nounwind
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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define i1 @length32_const(i8* %X, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length32_const:
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; CHECK: # BB#0:
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: movl $.L.str, %esi
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; CHECK-NEXT: movl $32, %edx
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; CHECK-NEXT: callq memcmp
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: setne %al
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 32) nounwind
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%c = icmp ne i32 %m, 0
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ret i1 %c
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}
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define i1 @length64(i8* %x, i8* %y) nounwind {
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; CHECK-LABEL: length64:
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; CHECK: # BB#0:
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: movl $64, %edx
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; CHECK-NEXT: callq memcmp
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: setne %al
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: retq
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%call = tail call i32 @memcmp(i8* %x, i8* %y, i64 64) nounwind
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%cmp = icmp ne i32 %call, 0
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ret i1 %cmp
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}
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define i1 @length64_const(i8* %X, i32* nocapture %P) nounwind {
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; CHECK-LABEL: length64_const:
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; CHECK: # BB#0:
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: movl $.L.str, %esi
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; CHECK-NEXT: movl $64, %edx
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; CHECK-NEXT: callq memcmp
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; CHECK-NEXT: testl %eax, %eax
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; CHECK-NEXT: sete %al
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: retq
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%m = tail call i32 @memcmp(i8* %X, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str, i32 0, i32 0), i64 64) nounwind
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%c = icmp eq i32 %m, 0
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ret i1 %c
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}
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