Files
clang-p2996/llvm/test/CodeGen/X86/GlobalISel/cmp.ll
Craig Topper 5f7cdb2eff [X86][GlobalISel] Legalize G_ICMP results to s8.
We need to produce a setcc instruction which has an 8-bit result.
This gets rid of a bunch of cases that were using the s1->s8/s16/s32/s64
handling in selectZExt.

I'm not very familiar with GlobalISel yet so I'm not yet sure
the best way to do things. I'd especially like feedback on the
best way to handle the currently split 32-bit and 64-bit mode
handling.

Differential Revision: https://reviews.llvm.org/D85814
2020-08-12 10:13:59 -07:00

173 lines
4.1 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-linux-gnu -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=ALL
define i32 @test_icmp_eq_i8(i8 %a, i8 %b) {
; ALL-LABEL: test_icmp_eq_i8:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpb %sil, %dil
; ALL-NEXT: sete %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp eq i8 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_eq_i16(i16 %a, i16 %b) {
; ALL-LABEL: test_icmp_eq_i16:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpw %si, %di
; ALL-NEXT: sete %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp eq i16 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_eq_i64(i64 %a, i64 %b) {
; ALL-LABEL: test_icmp_eq_i64:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpq %rsi, %rdi
; ALL-NEXT: sete %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp eq i64 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_eq_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_eq_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: sete %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp eq i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_ne_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_ne_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: setne %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp ne i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_ugt_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_ugt_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: seta %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp ugt i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_uge_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_uge_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: setae %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp uge i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_ult_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_ult_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: setb %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp ult i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_ule_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_ule_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: setbe %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp ule i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_sgt_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_sgt_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: setg %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp sgt i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_sge_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_sge_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: setge %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp sge i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_slt_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_slt_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: setl %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp slt i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}
define i32 @test_icmp_sle_i32(i32 %a, i32 %b) {
; ALL-LABEL: test_icmp_sle_i32:
; ALL: # %bb.0:
; ALL-NEXT: xorl %eax, %eax
; ALL-NEXT: cmpl %esi, %edi
; ALL-NEXT: setle %al
; ALL-NEXT: andl $1, %eax
; ALL-NEXT: retq
%r = icmp sle i32 %a, %b
%res = zext i1 %r to i32
ret i32 %res
}