; RUN: llc < %s -mtriple=aarch64-linux-gnu -mattr=+lsl-fast | FileCheck %s %struct.a = type [256 x i16] %struct.b = type [256 x i32] %struct.c = type [256 x i64] declare void @foo() define i16 @halfword(%struct.a* %ctx, i32 %xor72) nounwind { ; CHECK-LABEL: halfword: ; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8 ; CHECK: ldrh [[REG1:w[0-9]+]], [{{.*}}[[REG2:x[0-9]+]], [[REG]], lsl #1] ; CHECK: strh [[REG1]], [{{.*}}[[REG2]], [[REG]], lsl #1] %shr81 = lshr i32 %xor72, 9 %conv82 = zext i32 %shr81 to i64 %idxprom83 = and i64 %conv82, 255 %arrayidx86 = getelementptr inbounds %struct.a, %struct.a* %ctx, i64 0, i64 %idxprom83 %result = load i16, i16* %arrayidx86, align 2 call void @foo() store i16 %result, i16* %arrayidx86, align 2 ret i16 %result } define i32 @word(%struct.b* %ctx, i32 %xor72) nounwind { ; CHECK-LABEL: word: ; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8 ; CHECK: ldr [[REG1:w[0-9]+]], [{{.*}}[[REG2:x[0-9]+]], [[REG]], lsl #2] ; CHECK: str [[REG1]], [{{.*}}[[REG2]], [[REG]], lsl #2] %shr81 = lshr i32 %xor72, 9 %conv82 = zext i32 %shr81 to i64 %idxprom83 = and i64 %conv82, 255 %arrayidx86 = getelementptr inbounds %struct.b, %struct.b* %ctx, i64 0, i64 %idxprom83 %result = load i32, i32* %arrayidx86, align 4 call void @foo() store i32 %result, i32* %arrayidx86, align 4 ret i32 %result } define i64 @doubleword(%struct.c* %ctx, i32 %xor72) nounwind { ; CHECK-LABEL: doubleword: ; CHECK: ubfx [[REG:x[0-9]+]], x1, #9, #8 ; CHECK: ldr [[REG1:x[0-9]+]], [{{.*}}[[REG2:x[0-9]+]], [[REG]], lsl #3] ; CHECK: str [[REG1]], [{{.*}}[[REG2]], [[REG]], lsl #3] %shr81 = lshr i32 %xor72, 9 %conv82 = zext i32 %shr81 to i64 %idxprom83 = and i64 %conv82, 255 %arrayidx86 = getelementptr inbounds %struct.c, %struct.c* %ctx, i64 0, i64 %idxprom83 %result = load i64, i64* %arrayidx86, align 8 call void @foo() store i64 %result, i64* %arrayidx86, align 8 ret i64 %result } define i64 @multi_use_non_memory(i64 %a, i64 %b) { ; CHECK-LABEL: multi_use_non_memory: ; CHECK: lsl [[REG1:x[0-9]+]], x0, #3 ; CHECK-NOT: cmp [[REG1]], x1, lsl # 3 ; CHECK-NEXT: lsl [[REG2:x[0-9]+]], x1, #3 ; CHECK-NEXT: cmp [[REG1]], [[REG2]] entry: %mul1 = shl i64 %a, 3 %mul2 = shl i64 %b, 3 %cmp = icmp slt i64 %mul1, %mul2 br i1 %cmp, label %truebb, label %falsebb truebb: tail call void @foo() unreachable falsebb: %cmp2 = icmp sgt i64 %mul1, %mul2 br i1 %cmp2, label %exitbb, label %endbb exitbb: ret i64 %mul1 endbb: ret i64 %mul2 }