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

31 lines
800 B
LLVM

; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
%struct.A = type { i8, i8, i8, i8, i16, i8, i8, %struct.B** }
%struct.B = type { float, float, i32, i32, i32, [0 x i8] }
define i8 @f1(%struct.A* %d) {
%tmp2 = getelementptr %struct.A, %struct.A* %d, i32 0, i32 4
%tmp23 = bitcast i16* %tmp2 to i32*
%tmp4 = load i32, i32* %tmp23
%tmp512 = lshr i32 %tmp4, 24
%tmp56 = trunc i32 %tmp512 to i8
ret i8 %tmp56
}
define i32 @f2(%struct.A* %d) {
%tmp2 = getelementptr %struct.A, %struct.A* %d, i32 0, i32 4
%tmp23 = bitcast i16* %tmp2 to i32*
%tmp4 = load i32, i32* %tmp23
%tmp512 = lshr i32 %tmp4, 24
%tmp56 = trunc i32 %tmp512 to i8
%tmp57 = sext i8 %tmp56 to i32
ret i32 %tmp57
}
; CHECK: ldrb{{.*}}7
; CHECK-NOT: ldrb{{.*}}7
; CHECK: ldrsb{{.*}}7
; CHECK-NOT: ldrsb{{.*}}7