llvm-for-llvmta/test/CodeGen/ARM/pr36577.ll

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2022-04-25 10:02:23 +02:00
; RUN: llc -mtriple armv6t2 %s -o - | FileCheck %s
; RUN: llc -mtriple thumbv6t2 %s -o - | FileCheck %s --check-prefix=CHECK-T2
; RUN: llc -mtriple armv7 %s -o - | FileCheck %s
; RUN: llc -mtriple thumbv7 %s -o - | FileCheck %s --check-prefix=CHECK-T2
; RUN: llc -mtriple thumbv7m %s -o - | FileCheck %s --check-prefix=CHECK-T2
; RUN: llc -mtriple thumbv8m.main %s -o - | FileCheck %s --check-prefix=CHECK-T2
@a = common dso_local local_unnamed_addr global i16 0, align 2
; CHECK-LABEL: pr36577
; CHECK: ldrh r0, [r0]
; CHECK: mvn r0, r0, lsr #7
; CHECK: orr r0, r1, r0, lsl #2
; CHECK-T2: ldrh r0, [r0]
; CHECK-T2: mvn.w r0, r0, lsr #7
; CHECK-T2: orr.w r0, r1, r0, lsl #2
define dso_local arm_aapcscc i32** @pr36577() {
entry:
%0 = load i16, i16* @a, align 2
%1 = lshr i16 %0, 7
%2 = and i16 %1, 1
%3 = zext i16 %2 to i32
%4 = xor i32 %3, -1
%add.ptr = getelementptr inbounds i32*, i32** null, i32 %4
ret i32** %add.ptr
}