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48 lines
807 B
LLVM
48 lines
807 B
LLVM
; RUN: llc < %s -march=arm -mattr=+v6t2 | FileCheck %s
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define i32 @f1(i32 %a) {
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entry:
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; CHECK: f1:
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; CHECK: sbfx r0, r0, #0, #20
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%tmp = shl i32 %a, 12
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%tmp2 = ashr i32 %tmp, 12
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ret i32 %tmp2
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}
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define i32 @f2(i32 %a) {
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entry:
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; CHECK: f2:
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; CHECK: bfc r0, #20, #12
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%tmp = shl i32 %a, 12
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%tmp2 = lshr i32 %tmp, 12
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ret i32 %tmp2
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}
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define i32 @f3(i32 %a) {
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entry:
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; CHECK: f3:
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; CHECK: sbfx r0, r0, #5, #3
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%tmp = shl i32 %a, 24
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%tmp2 = ashr i32 %tmp, 29
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ret i32 %tmp2
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}
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define i32 @f4(i32 %a) {
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entry:
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; CHECK: f4:
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; CHECK: ubfx r0, r0, #5, #3
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%tmp = shl i32 %a, 24
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%tmp2 = lshr i32 %tmp, 29
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ret i32 %tmp2
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}
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define i32 @f5(i32 %a) {
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entry:
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; CHECK: f5:
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; CHECK-NOT: sbfx
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; CHECK: bx
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%tmp = shl i32 %a, 3
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%tmp2 = ashr i32 %tmp, 1
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ret i32 %tmp2
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}
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