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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/combine-i64-trunc-srl-add.ll
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

272 lines
7.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=x86_64-unknown | FileCheck %s --check-prefixes=X64
; Test for https://github.com/llvm/llvm-project/issues/123239
define i1 @test_ult_trunc_add(i64 %x) {
; X64-LABEL: test_ult_trunc_add:
; X64: # %bb.0:
; X64-NEXT: shrq $48, %rdi
; X64-NEXT: addl $14, %edi
; X64-NEXT: movzwl %di, %eax
; X64-NEXT: cmpl $3, %eax
; X64-NEXT: setb %al
; X64-NEXT: retq
%add = add i64 %x, 3940649673949184
%shr = lshr i64 %add, 48
%conv = trunc i64 %shr to i32
%res = icmp ult i32 %conv, 3
ret i1 %res
}
define i1 @test_ult_add(i64 %x) {
; X64-LABEL: test_ult_add:
; X64: # %bb.0:
; X64-NEXT: shrq $48, %rdi
; X64-NEXT: addl $14, %edi
; X64-NEXT: movzwl %di, %eax
; X64-NEXT: cmpl $3, %eax
; X64-NEXT: setb %al
; X64-NEXT: retq
%add = add i64 3940649673949184, %x
%cmp = icmp ult i64 %add, 844424930131968
ret i1 %cmp
}
define i1 @test_ugt_trunc_add(i64 %x) {
; X64-LABEL: test_ugt_trunc_add:
; X64: # %bb.0:
; X64-NEXT: shrq $48, %rdi
; X64-NEXT: addl $14, %edi
; X64-NEXT: movzwl %di, %eax
; X64-NEXT: cmpl $4, %eax
; X64-NEXT: setae %al
; X64-NEXT: retq
%add = add i64 %x, 3940649673949184
%shr = lshr i64 %add, 48
%conv = trunc i64 %shr to i32
%res = icmp ugt i32 %conv, 3
ret i1 %res
}
define i1 @test_ugt_add(i64 %x) {
; X64-LABEL: test_ugt_add:
; X64: # %bb.0:
; X64-NEXT: movabsq $3940649673949184, %rax # imm = 0xE000000000000
; X64-NEXT: addq %rdi, %rax
; X64-NEXT: movabsq $844424930131968, %rcx # imm = 0x3000000000000
; X64-NEXT: cmpq %rcx, %rax
; X64-NEXT: seta %al
; X64-NEXT: retq
%add = add i64 3940649673949184, %x
%cmp = icmp ugt i64 %add, 844424930131968
ret i1 %cmp
}
define i1 @test_eq_trunc_add(i64 %x) {
; X64-LABEL: test_eq_trunc_add:
; X64: # %bb.0:
; X64-NEXT: shrq $48, %rdi
; X64-NEXT: cmpl $65525, %edi # imm = 0xFFF5
; X64-NEXT: sete %al
; X64-NEXT: retq
%add = add i64 %x, 3940649673949184
%shr = lshr i64 %add, 48
%conv = trunc i64 %shr to i32
%res = icmp eq i32 %conv, 3
ret i1 %res
}
define i1 @test_eq_add(i64 %x) {
; X64-LABEL: test_eq_add:
; X64: # %bb.0:
; X64-NEXT: movabsq $-3096224743817216, %rax # imm = 0xFFF5000000000000
; X64-NEXT: cmpq %rax, %rdi
; X64-NEXT: sete %al
; X64-NEXT: retq
%add = add i64 3940649673949184, %x
%cmp = icmp eq i64 %add, 844424930131968
ret i1 %cmp
}
define i1 @test_ne_trunc_add(i64 %x) {
; X64-LABEL: test_ne_trunc_add:
; X64: # %bb.0:
; X64-NEXT: shrq $48, %rdi
; X64-NEXT: cmpl $65525, %edi # imm = 0xFFF5
; X64-NEXT: setne %al
; X64-NEXT: retq
%add = add i64 %x, 3940649673949184
%shr = lshr i64 %add, 48
%conv = trunc i64 %shr to i32
%res = icmp ne i32 %conv, 3
ret i1 %res
}
define i1 @test_ne_add(i64 %x) {
; X64-LABEL: test_ne_add:
; X64: # %bb.0:
; X64-NEXT: movabsq $-3096224743817216, %rax # imm = 0xFFF5000000000000
; X64-NEXT: cmpq %rax, %rdi
; X64-NEXT: setne %al
; X64-NEXT: retq
%add = add i64 3940649673949184, %x
%cmp = icmp ne i64 %add, 844424930131968
ret i1 %cmp
}
define i32 @test_trunc_add(i64 %x) {
; X64-LABEL: test_trunc_add:
; X64: # %bb.0:
; X64-NEXT: shrq $48, %rdi
; X64-NEXT: addl $14, %edi
; X64-NEXT: movzwl %di, %eax
; X64-NEXT: retq
%add = add i64 %x, 3940649673949184
%shr = lshr i64 %add, 48
%conv = trunc i64 %shr to i32
ret i32 %conv
}
define i32 @test_trunc_sub(i64 %x) {
; X64-LABEL: test_trunc_sub:
; X64: # %bb.0:
; X64-NEXT: shrq $49, %rdi
; X64-NEXT: leal 32762(%rdi), %eax
; X64-NEXT: andl $32767, %eax # imm = 0x7FFF
; X64-NEXT: retq
%sub = sub i64 %x, 3377699720527872
%shr = lshr i64 %sub, 49
%conv = trunc i64 %shr to i32
ret i32 %conv
}
define i32 @test_trunc_and_1(i64 %x) {
; X64-LABEL: test_trunc_and_1:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: shrq $50, %rax
; X64-NEXT: andl $3, %eax
; X64-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NEXT: retq
%and = and i64 %x, 3940649673949184
%shr = lshr i64 %and, 50
%conv = trunc i64 %shr to i32
ret i32 %conv
}
define i32 @test_trunc_or_1(i64 %x) {
; X64-LABEL: test_trunc_or_1:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: shrq $50, %rax
; X64-NEXT: orl $3, %eax
; X64-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NEXT: retq
%or = or i64 %x, 3940649673949184
%shr = lshr i64 %or, 50
%conv = trunc i64 %shr to i32
ret i32 %conv
}
define i32 @test_trunc_xor_1(i64 %x) {
; X64-LABEL: test_trunc_xor_1:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: shrq $50, %rax
; X64-NEXT: xorl $3, %eax
; X64-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NEXT: retq
%xor = xor i64 %x, 3940649673949184
%shr = lshr i64 %xor, 50
%conv = trunc i64 %shr to i32
ret i32 %conv
}
define i32 @test_trunc_and_2(i64 %x) {
; X64-LABEL: test_trunc_and_2:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: shrq $45, %rax
; X64-NEXT: andl $111, %eax
; X64-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NEXT: retq
%and = and i64 %x, 3940649673949183
%shr = lshr i64 %and, 45
%conv = trunc i64 %shr to i32
ret i32 %conv
}
define i32 @test_trunc_or_2(i64 %x) {
; X64-LABEL: test_trunc_or_2:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: shrq $45, %rax
; X64-NEXT: orl $111, %eax
; X64-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NEXT: retq
%or = or i64 %x, 3940649673949183
%shr = lshr i64 %or, 45
%conv = trunc i64 %shr to i32
ret i32 %conv
}
define i32 @test_trunc_xor_2(i64 %x) {
; X64-LABEL: test_trunc_xor_2:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: shrq $45, %rax
; X64-NEXT: xorl $111, %eax
; X64-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NEXT: retq
%xor = xor i64 %x, 3940649673949183
%shr = lshr i64 %xor, 45
%conv = trunc i64 %shr to i32
ret i32 %conv
}
; Make sure we don't crash on this test case.
define i32 @pr128158(i64 %x) {
; X64-LABEL: pr128158:
; X64: # %bb.0: # %entry
; X64-NEXT: movabsq $-4294967296, %rax # imm = 0xFFFFFFFF00000000
; X64-NEXT: addq %rdi, %rax
; X64-NEXT: shrq $32, %rax
; X64-NEXT: .p2align 4
; X64-NEXT: .LBB16_1: # %for.body
; X64-NEXT: # =>This Inner Loop Header: Depth=1
; X64-NEXT: cmpl $9, %eax
; X64-NEXT: jb .LBB16_1
; X64-NEXT: # %bb.2: # %exit
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: retq
entry:
br label %for.body
for.body:
%add = add i64 %x, -4294967296
%cmp = icmp ult i64 %add, 38654705664
br i1 %cmp, label %for.body, label %exit
exit:
ret i32 0
}
define i64 @pr128309(i64 %x) {
; X64-LABEL: pr128309:
; X64: # %bb.0: # %entry
; X64-NEXT: movl %edi, %eax
; X64-NEXT: andl $18114, %eax # imm = 0x46C2
; X64-NEXT: addl $6, %eax
; X64-NEXT: andl %edi, %eax
; X64-NEXT: retq
entry:
%shl = shl i64 %x, 48
%and = and i64 %shl, 5098637728136822784
%add = add i64 %and, 1688849860263936
%lshr = lshr i64 %add, 48
%res = and i64 %lshr, %x
ret i64 %res
}