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llvm-project/llvm/test/CodeGen/X86/cmov-promotion.ll

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+cmov | FileCheck %s --check-prefix=CMOV
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=-cmov | FileCheck %s --check-prefix=NO_CMOV
define i16 @cmov_zpromotion_8_to_16(i1 %c) {
; CMOV-LABEL: cmov_zpromotion_8_to_16:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movb $117, %al
; CMOV-NEXT: jne .LBB0_2
; CMOV-NEXT: # %bb.1:
; CMOV-NEXT: movb $-19, %al
; CMOV-NEXT: .LBB0_2:
; CMOV-NEXT: movzbl %al, %eax
; CMOV-NEXT: # kill: def %ax killed %ax killed %eax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_zpromotion_8_to_16:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movb $117, %al
; NO_CMOV-NEXT: jne .LBB0_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movb $-19, %al
; NO_CMOV-NEXT: .LBB0_2:
; NO_CMOV-NEXT: movzbl %al, %eax
; NO_CMOV-NEXT: # kill: def %ax killed %ax killed %eax
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i8 117, i8 -19
%ret = zext i8 %t0 to i16
ret i16 %ret
}
define i32 @cmov_zpromotion_8_to_32(i1 %c) {
; CMOV-LABEL: cmov_zpromotion_8_to_32:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movb $126, %al
; CMOV-NEXT: jne .LBB1_2
; CMOV-NEXT: # %bb.1:
; CMOV-NEXT: movb $-1, %al
; CMOV-NEXT: .LBB1_2:
; CMOV-NEXT: movzbl %al, %eax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_zpromotion_8_to_32:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movb $126, %al
; NO_CMOV-NEXT: jne .LBB1_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movb $-1, %al
; NO_CMOV-NEXT: .LBB1_2:
; NO_CMOV-NEXT: movzbl %al, %eax
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i8 12414, i8 -1
%ret = zext i8 %t0 to i32
ret i32 %ret
}
define i64 @cmov_zpromotion_8_to_64(i1 %c) {
; CMOV-LABEL: cmov_zpromotion_8_to_64:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movb $126, %al
; CMOV-NEXT: jne .LBB2_2
; CMOV-NEXT: # %bb.1:
; CMOV-NEXT: movb $-1, %al
; CMOV-NEXT: .LBB2_2:
; CMOV-NEXT: movzbl %al, %eax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_zpromotion_8_to_64:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movb $126, %al
; NO_CMOV-NEXT: jne .LBB2_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movb $-1, %al
; NO_CMOV-NEXT: .LBB2_2:
; NO_CMOV-NEXT: movzbl %al, %eax
; NO_CMOV-NEXT: xorl %edx, %edx
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i8 12414, i8 -1
%ret = zext i8 %t0 to i64
ret i64 %ret
}
define i32 @cmov_zpromotion_16_to_32(i1 %c) {
; CMOV-LABEL: cmov_zpromotion_16_to_32:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movl $12414, %ecx # imm = 0x307E
; CMOV-NEXT: movl $65535, %eax # imm = 0xFFFF
; CMOV-NEXT: cmovnel %ecx, %eax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_zpromotion_16_to_32:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
; NO_CMOV-NEXT: jne .LBB3_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movl $65535, %eax # imm = 0xFFFF
; NO_CMOV-NEXT: .LBB3_2:
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i16 12414, i16 -1
%ret = zext i16 %t0 to i32
ret i32 %ret
}
define i64 @cmov_zpromotion_16_to_64(i1 %c) {
; CMOV-LABEL: cmov_zpromotion_16_to_64:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movl $12414, %ecx # imm = 0x307E
; CMOV-NEXT: movl $65535, %eax # imm = 0xFFFF
; CMOV-NEXT: cmovneq %rcx, %rax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_zpromotion_16_to_64:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
; NO_CMOV-NEXT: jne .LBB4_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movl $65535, %eax # imm = 0xFFFF
; NO_CMOV-NEXT: .LBB4_2:
; NO_CMOV-NEXT: xorl %edx, %edx
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i16 12414, i16 -1
%ret = zext i16 %t0 to i64
ret i64 %ret
}
define i64 @cmov_zpromotion_32_to_64(i1 %c) {
; CMOV-LABEL: cmov_zpromotion_32_to_64:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movl $12414, %ecx # imm = 0x307E
; CMOV-NEXT: movl $-1, %eax
; CMOV-NEXT: cmovnel %ecx, %eax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_zpromotion_32_to_64:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
; NO_CMOV-NEXT: jne .LBB5_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movl $-1, %eax
; NO_CMOV-NEXT: .LBB5_2:
; NO_CMOV-NEXT: xorl %edx, %edx
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i32 12414, i32 -1
%ret = zext i32 %t0 to i64
ret i64 %ret
}
define i16 @cmov_spromotion_8_to_16(i1 %c) {
; CMOV-LABEL: cmov_spromotion_8_to_16:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movb $117, %al
; CMOV-NEXT: jne .LBB6_2
; CMOV-NEXT: # %bb.1:
; CMOV-NEXT: movb $-19, %al
; CMOV-NEXT: .LBB6_2:
; CMOV-NEXT: movsbl %al, %eax
; CMOV-NEXT: # kill: def %ax killed %ax killed %eax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_spromotion_8_to_16:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movb $117, %al
; NO_CMOV-NEXT: jne .LBB6_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movb $-19, %al
; NO_CMOV-NEXT: .LBB6_2:
; NO_CMOV-NEXT: movsbl %al, %eax
; NO_CMOV-NEXT: # kill: def %ax killed %ax killed %eax
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i8 117, i8 -19
%ret = sext i8 %t0 to i16
ret i16 %ret
}
define i32 @cmov_spromotion_8_to_32(i1 %c) {
; CMOV-LABEL: cmov_spromotion_8_to_32:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movb $126, %al
; CMOV-NEXT: jne .LBB7_2
; CMOV-NEXT: # %bb.1:
; CMOV-NEXT: movb $-1, %al
; CMOV-NEXT: .LBB7_2:
; CMOV-NEXT: movsbl %al, %eax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_spromotion_8_to_32:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movb $126, %al
; NO_CMOV-NEXT: jne .LBB7_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movb $-1, %al
; NO_CMOV-NEXT: .LBB7_2:
; NO_CMOV-NEXT: movsbl %al, %eax
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i8 12414, i8 -1
%ret = sext i8 %t0 to i32
ret i32 %ret
}
define i64 @cmov_spromotion_8_to_64(i1 %c) {
; CMOV-LABEL: cmov_spromotion_8_to_64:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movb $126, %al
; CMOV-NEXT: jne .LBB8_2
; CMOV-NEXT: # %bb.1:
; CMOV-NEXT: movb $-1, %al
; CMOV-NEXT: .LBB8_2:
; CMOV-NEXT: movsbq %al, %rax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_spromotion_8_to_64:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movb $126, %al
; NO_CMOV-NEXT: jne .LBB8_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movb $-1, %al
; NO_CMOV-NEXT: .LBB8_2:
; NO_CMOV-NEXT: movsbl %al, %eax
; NO_CMOV-NEXT: movl %eax, %edx
; NO_CMOV-NEXT: sarl $31, %edx
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i8 12414, i8 -1
%ret = sext i8 %t0 to i64
ret i64 %ret
}
define i32 @cmov_spromotion_16_to_32(i1 %c) {
; CMOV-LABEL: cmov_spromotion_16_to_32:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movl $12414, %ecx # imm = 0x307E
; CMOV-NEXT: movl $-1, %eax
; CMOV-NEXT: cmovnel %ecx, %eax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_spromotion_16_to_32:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
; NO_CMOV-NEXT: jne .LBB9_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movl $-1, %eax
; NO_CMOV-NEXT: .LBB9_2:
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i16 12414, i16 -1
%ret = sext i16 %t0 to i32
ret i32 %ret
}
define i64 @cmov_spromotion_16_to_64(i1 %c) {
; CMOV-LABEL: cmov_spromotion_16_to_64:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movl $12414, %ecx # imm = 0x307E
; CMOV-NEXT: movq $-1, %rax
; CMOV-NEXT: cmovneq %rcx, %rax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_spromotion_16_to_64:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
; NO_CMOV-NEXT: jne .LBB10_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movl $-1, %eax
; NO_CMOV-NEXT: .LBB10_2:
; NO_CMOV-NEXT: movl %eax, %edx
; NO_CMOV-NEXT: sarl $31, %edx
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i16 12414, i16 -1
%ret = sext i16 %t0 to i64
ret i64 %ret
}
define i64 @cmov_spromotion_32_to_64(i1 %c) {
; CMOV-LABEL: cmov_spromotion_32_to_64:
; CMOV: # %bb.0:
; CMOV-NEXT: testb $1, %dil
; CMOV-NEXT: movl $12414, %eax # imm = 0x307E
; CMOV-NEXT: movl $-1, %ecx
; CMOV-NEXT: cmovnel %eax, %ecx
; CMOV-NEXT: movslq %ecx, %rax
; CMOV-NEXT: retq
;
; NO_CMOV-LABEL: cmov_spromotion_32_to_64:
; NO_CMOV: # %bb.0:
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
; NO_CMOV-NEXT: jne .LBB11_2
; NO_CMOV-NEXT: # %bb.1:
; NO_CMOV-NEXT: movl $-1, %eax
; NO_CMOV-NEXT: .LBB11_2:
; NO_CMOV-NEXT: movl %eax, %edx
; NO_CMOV-NEXT: sarl $31, %edx
; NO_CMOV-NEXT: retl
%t0 = select i1 %c, i32 12414, i32 -1
%ret = sext i32 %t0 to i64
ret i64 %ret
}
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