thumb2-ldr_ext.ll
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; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s
define i32 @test1(i8* %v.pntr.s0.u1) {
%tmp.u = load i8, i8* %v.pntr.s0.u1
%tmp1.s = zext i8 %tmp.u to i32
ret i32 %tmp1.s
}
define i32 @test2(i16* %v.pntr.s0.u1) {
%tmp.u = load i16, i16* %v.pntr.s0.u1
%tmp1.s = zext i16 %tmp.u to i32
ret i32 %tmp1.s
}
define i32 @test3(i8* %v.pntr.s1.u0) {
%tmp.s = load i8, i8* %v.pntr.s1.u0
%tmp1.s = sext i8 %tmp.s to i32
ret i32 %tmp1.s
}
define i32 @test4() {
%tmp.s = load i16, i16* null
%tmp1.s = sext i16 %tmp.s to i32
ret i32 %tmp1.s
}
; CHECK: ldrb
; CHECK-NOT: ldrb
; CHECK: ldrh
; CHECK-NOT: ldrh
; CHECK: ldrsb
; CHECK-NOT: ldrsb
; CHECK: ldrsh
; CHECK-NOT: ldrsh