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llvm-mirror/test/CodeGen/X86/fast-isel-select-cmov.ll
Michael Kuperstein 0f3d6c7984 Revert r274613 because it breaks the test suite with AVX512
This reverts most of r274613 (AKA r274626) and its follow-ups (r276347, r277289),
due to miscompiles in the test suite. The FastISel change was left in, because
it apparently fixes an unrelated issue.

(Recommit of r279782 which was broken due to a bad merge.)

This fixes 4 out of the 5 test failures in PR29112.

llvm-svn: 279788
2016-08-25 22:48:11 +00:00

104 lines
3.1 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -fast-isel -fast-isel-abort=1 -mtriple=x86_64-apple-darwin10 | FileCheck %s --check-prefix=CHECK --check-prefix=NOAVX512
; RUN: llc < %s -fast-isel -fast-isel-abort=1 -mtriple=x86_64-apple-darwin10 -mattr=+avx512f | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512
; Test conditional move for the supported types (i16, i32, and i32) and
; conditon input (argument or cmp). Currently i8 is not supported.
define zeroext i16 @select_cmov_i16(i1 zeroext %cond, i16 zeroext %a, i16 zeroext %b) {
; NOAVX512-LABEL: select_cmov_i16:
; NOAVX512: ## BB#0:
; NOAVX512-NEXT: testb $1, %dil
; NOAVX512-NEXT: cmovew %dx, %si
; NOAVX512-NEXT: movzwl %si, %eax
; NOAVX512-NEXT: retq
;
; AVX512-LABEL: select_cmov_i16:
; AVX512: ## BB#0:
; AVX512-NEXT: andl $1, %edi
; AVX512-NEXT: kmovw %edi, %k0
; AVX512-NEXT: kortestw %k0, %k0
; AVX512-NEXT: cmovew %dx, %si
; AVX512-NEXT: movzwl %si, %eax
; AVX512-NEXT: retq
%1 = select i1 %cond, i16 %a, i16 %b
ret i16 %1
}
define zeroext i16 @select_cmp_cmov_i16(i16 zeroext %a, i16 zeroext %b) {
; CHECK-LABEL: select_cmp_cmov_i16:
; CHECK: ## BB#0:
; CHECK-NEXT: cmpw %si, %di
; CHECK-NEXT: cmovbw %di, %si
; CHECK-NEXT: movzwl %si, %eax
; CHECK-NEXT: retq
%1 = icmp ult i16 %a, %b
%2 = select i1 %1, i16 %a, i16 %b
ret i16 %2
}
define i32 @select_cmov_i32(i1 zeroext %cond, i32 %a, i32 %b) {
; NOAVX512-LABEL: select_cmov_i32:
; NOAVX512: ## BB#0:
; NOAVX512-NEXT: testb $1, %dil
; NOAVX512-NEXT: cmovel %edx, %esi
; NOAVX512-NEXT: movl %esi, %eax
; NOAVX512-NEXT: retq
;
; AVX512-LABEL: select_cmov_i32:
; AVX512: ## BB#0:
; AVX512-NEXT: andl $1, %edi
; AVX512-NEXT: kmovw %edi, %k0
; AVX512-NEXT: kortestw %k0, %k0
; AVX512-NEXT: cmovel %edx, %esi
; AVX512-NEXT: movl %esi, %eax
; AVX512-NEXT: retq
%1 = select i1 %cond, i32 %a, i32 %b
ret i32 %1
}
define i32 @select_cmp_cmov_i32(i32 %a, i32 %b) {
; CHECK-LABEL: select_cmp_cmov_i32:
; CHECK: ## BB#0:
; CHECK-NEXT: cmpl %esi, %edi
; CHECK-NEXT: cmovbl %edi, %esi
; CHECK-NEXT: movl %esi, %eax
; CHECK-NEXT: retq
%1 = icmp ult i32 %a, %b
%2 = select i1 %1, i32 %a, i32 %b
ret i32 %2
}
define i64 @select_cmov_i64(i1 zeroext %cond, i64 %a, i64 %b) {
; NOAVX512-LABEL: select_cmov_i64:
; NOAVX512: ## BB#0:
; NOAVX512-NEXT: testb $1, %dil
; NOAVX512-NEXT: cmoveq %rdx, %rsi
; NOAVX512-NEXT: movq %rsi, %rax
; NOAVX512-NEXT: retq
;
; AVX512-LABEL: select_cmov_i64:
; AVX512: ## BB#0:
; AVX512-NEXT: andl $1, %edi
; AVX512-NEXT: kmovw %edi, %k0
; AVX512-NEXT: kortestw %k0, %k0
; AVX512-NEXT: cmoveq %rdx, %rsi
; AVX512-NEXT: movq %rsi, %rax
; AVX512-NEXT: retq
%1 = select i1 %cond, i64 %a, i64 %b
ret i64 %1
}
define i64 @select_cmp_cmov_i64(i64 %a, i64 %b) {
; CHECK-LABEL: select_cmp_cmov_i64:
; CHECK: ## BB#0:
; CHECK-NEXT: cmpq %rsi, %rdi
; CHECK-NEXT: cmovbq %rdi, %rsi
; CHECK-NEXT: movq %rsi, %rax
; CHECK-NEXT: retq
%1 = icmp ult i64 %a, %b
%2 = select i1 %1, i64 %a, i64 %b
ret i64 %2
}