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comparison test/Transforms/IndVarSimplify/preserve-signed-wrap.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 95c75e76d11b
children
comparison
equal deleted inserted replaced
84:f3e34b893a5f 95:afa8332a0e37
1 ; RUN: opt < %s -indvars -S | FileCheck %s 1 ; RUN: opt < %s -indvars -S | FileCheck %s
2 2
3 ; Indvars should insert a 64-bit induction variable to eliminate the 3 ; Indvars should insert a 64-bit induction variable to eliminate the
4 ; sext for the addressing, however it shouldn't eliminate the sext 4 ; sext for the addressing, however it shouldn't eliminate the sext
5 ; on the other phi, since that value undergoes signed wrapping. 5 ; on the other phi, since that value undergoes signed wrapping.
6
7 ; Provide legal integer types.
8 target datalayout = "n8:16:32:64"
9
6 10
7 define void @foo(i32* nocapture %d, i32 %n) nounwind { 11 define void @foo(i32* nocapture %d, i32 %n) nounwind {
8 entry: 12 entry:
9 %0 = icmp sgt i32 %n, 0 ; <i1> [#uses=1] 13 %0 = icmp sgt i32 %n, 0 ; <i1> [#uses=1]
10 br i1 %0, label %bb.nph, label %return 14 br i1 %0, label %bb.nph, label %return
19 bb: ; preds = %bb1, %bb.nph 23 bb: ; preds = %bb1, %bb.nph
20 %i.02 = phi i32 [ %5, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2] 24 %i.02 = phi i32 [ %5, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2]
21 %p.01 = phi i8 [ %4, %bb1 ], [ -1, %bb.nph ] ; <i8> [#uses=2] 25 %p.01 = phi i8 [ %4, %bb1 ], [ -1, %bb.nph ] ; <i8> [#uses=2]
22 %1 = sext i8 %p.01 to i32 ; <i32> [#uses=1] 26 %1 = sext i8 %p.01 to i32 ; <i32> [#uses=1]
23 %2 = sext i32 %i.02 to i64 ; <i64> [#uses=1] 27 %2 = sext i32 %i.02 to i64 ; <i64> [#uses=1]
24 %3 = getelementptr i32* %d, i64 %2 ; <i32*> [#uses=1] 28 %3 = getelementptr i32, i32* %d, i64 %2 ; <i32*> [#uses=1]
25 store i32 %1, i32* %3, align 4 29 store i32 %1, i32* %3, align 4
26 %4 = add i8 %p.01, 1 ; <i8> [#uses=1] 30 %4 = add i8 %p.01, 1 ; <i8> [#uses=1]
27 %5 = add i32 %i.02, 1 ; <i32> [#uses=2] 31 %5 = add i32 %i.02, 1 ; <i32> [#uses=2]
28 br label %bb1 32 br label %bb1
29 33