llvm-for-llvmta/test/CodeGen/X86/fast-isel-movsbl-indexreg.ll

21 lines
649 B
LLVM

; RUN: llc %s -o - -verify-machineinstrs -fast-isel=true | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-unknown"
; The index register on the folded memory operand was incorrect. Ensure we generate
; movsbl in fast-isel, but also that it passes verification which will check the register
; class.
; CHECK: movsbl
@table = external hidden global [64 x i8], align 16
define i32 @test(i32 %x, i64 %offset) {
bb:
%tmp37 = getelementptr inbounds [64 x i8], [64 x i8]* @table, i64 0, i64 %offset
%tmp38 = load i8, i8* %tmp37, align 1
%tmp39 = sext i8 %tmp38 to i32
ret i32 %tmp39
}