94 lines
2.5 KiB
LLVM
94 lines
2.5 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
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; RUN: llc < %s -mtriple=i386-unknown-unknown | FileCheck %s --check-prefixes=X86
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64
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define i64 @sub8(i64 noundef %res, ptr %byte) {
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; X86-LABEL: sub8:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movb (%ecx), %al
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; X86-NEXT: retl
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;
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; X64-LABEL: sub8:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movq %rdi, %rax
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; X64-NEXT: movb (%rsi), %al
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; X64-NEXT: retq
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entry:
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%and = and i64 %res, -256
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%d = load i8, ptr %byte, align 1
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%conv2 = zext i8 %d to i64
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%or = or i64 %and, %conv2
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ret i64 %or
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}
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define i64 @sub16(i64 noundef %res, ptr %byte) {
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; X86-LABEL: sub16:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movzwl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: shll $16, %ecx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movzwl (%eax), %eax
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; X86-NEXT: orl %ecx, %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: sub16:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movq %rdi, %rax
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; X64-NEXT: movw (%rsi), %ax
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; X64-NEXT: retq
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entry:
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%and = and i64 %res, -65536
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%d = load i16, ptr %byte, align 1
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%conv2 = zext i16 %d to i64
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%or = or i64 %and, %conv2
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ret i64 %or
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}
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define i32 @sub8_32(i32 noundef %res, ptr %byte) {
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; X86-LABEL: sub8_32:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movb (%ecx), %al
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; X86-NEXT: retl
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;
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; X64-LABEL: sub8_32:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: movb (%rsi), %al
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; X64-NEXT: retq
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entry:
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%and = and i32 %res, -256
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%d = load i8, ptr %byte, align 1
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%conv2 = zext i8 %d to i32
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%or = or i32 %and, %conv2
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ret i32 %or
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}
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define i32 @sub16_32(i32 noundef %res, ptr %byte) {
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; X86-LABEL: sub16_32:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movzwl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: shll $16, %ecx
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movzwl (%eax), %eax
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; X86-NEXT: orl %ecx, %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: sub16_32:
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; X64: # %bb.0: # %entry
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: movw (%rsi), %ax
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; X64-NEXT: retq
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entry:
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%and = and i32 %res, -65536
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%d = load i16, ptr %byte, align 1
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%conv2 = zext i16 %d to i32
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%or = or i32 %and, %conv2
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ret i32 %or
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}
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