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view test/CodeGen/SystemZ/shift-09.ll @ 128:c347d3398279 default tip
fix
author | mir3636 |
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date | Wed, 06 Dec 2017 14:37:17 +0900 |
parents | 95c75e76d11b |
children |
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; Test three-operand shifts. ; ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s ; Check that we use SLLK over SLL where useful. define i32 @f1(i32 %a, i32 %b, i32 %amt) { ; CHECK-LABEL: f1: ; CHECK: sllk %r2, %r3, 15(%r4) ; CHECK: br %r14 %add = add i32 %amt, 15 %shift = shl i32 %b, %add ret i32 %shift } ; Check that we use SLL over SLLK where possible. define i32 @f2(i32 %a, i32 %amt) { ; CHECK-LABEL: f2: ; CHECK: sll %r2, 15(%r3) ; CHECK: br %r14 %add = add i32 %amt, 15 %shift = shl i32 %a, %add ret i32 %shift } ; Check that we use SRLK over SRL where useful. define i32 @f3(i32 %a, i32 %b, i32 %amt) { ; CHECK-LABEL: f3: ; CHECK: srlk %r2, %r3, 15(%r4) ; CHECK: br %r14 %add = add i32 %amt, 15 %shift = lshr i32 %b, %add ret i32 %shift } ; Check that we use SRL over SRLK where possible. define i32 @f4(i32 %a, i32 %amt) { ; CHECK-LABEL: f4: ; CHECK: srl %r2, 15(%r3) ; CHECK: br %r14 %add = add i32 %amt, 15 %shift = lshr i32 %a, %add ret i32 %shift } ; Check that we use SRAK over SRA where useful. define i32 @f5(i32 %a, i32 %b, i32 %amt) { ; CHECK-LABEL: f5: ; CHECK: srak %r2, %r3, 15(%r4) ; CHECK: br %r14 %add = add i32 %amt, 15 %shift = ashr i32 %b, %add ret i32 %shift } ; Check that we use SRA over SRAK where possible. define i32 @f6(i32 %a, i32 %amt) { ; CHECK-LABEL: f6: ; CHECK: sra %r2, 15(%r3) ; CHECK: br %r14 %add = add i32 %amt, 15 %shift = ashr i32 %a, %add ret i32 %shift }