From 03407da281ccef3b925935b33f1d7e397b303efc Mon Sep 17 00:00:00 2001 From: Max Kazantsev Date: Tue, 29 Aug 2017 05:20:56 +0000 Subject: [PATCH] [NFC] Refactor ShadowIV test to use FileCheck Also get rid of unnamed values that make the test hard to read. llvm-svn: 311980 --- .../X86/2008-08-14-ShadowIV.ll | 72 ++++++++++++------- 1 file changed, 45 insertions(+), 27 deletions(-) diff --git a/llvm/test/Transforms/LoopStrengthReduce/X86/2008-08-14-ShadowIV.ll b/llvm/test/Transforms/LoopStrengthReduce/X86/2008-08-14-ShadowIV.ll index f862c2635869..6b446f26a63a 100644 --- a/llvm/test/Transforms/LoopStrengthReduce/X86/2008-08-14-ShadowIV.ll +++ b/llvm/test/Transforms/LoopStrengthReduce/X86/2008-08-14-ShadowIV.ll @@ -1,24 +1,28 @@ -; RUN: opt < %s -loop-reduce -S -mtriple=x86_64-unknown-unknown | grep "phi double" | count 1 +; RUN: opt < %s -loop-reduce -S -mtriple=x86_64-unknown-unknown 2>&1 | FileCheck %s ; Provide legal integer types. target datalayout = "n8:16:32:64" define void @foobar(i32 %n) nounwind { + +; CHECK-LABEL: foobar( +; CHECK: phi double + entry: - icmp eq i32 %n, 0 ; :0 [#uses=2] - br i1 %0, label %return, label %bb.nph + %cond = icmp eq i32 %n, 0 ; :0 [#uses=2] + br i1 %cond, label %return, label %bb.nph bb.nph: ; preds = %entry - %umax = select i1 %0, i32 1, i32 %n ; [#uses=1] + %umax = select i1 %cond, i32 1, i32 %n ; [#uses=1] br label %bb bb: ; preds = %bb, %bb.nph %i.03 = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb ] ; [#uses=3] tail call void @bar( i32 %i.03 ) nounwind - uitofp i32 %i.03 to double ; :1 [#uses=1] - tail call void @foo( double %1 ) nounwind - %indvar.next = add i32 %i.03, 1 ; [#uses=2] + %tmp1 = uitofp i32 %i.03 to double ; :1 [#uses=1] + tail call void @foo( double %tmp1 ) nounwind + %indvar.next = add nsw nuw i32 %i.03, 1 ; [#uses=2] %exitcond = icmp eq i32 %indvar.next, %umax ; [#uses=1] br i1 %exitcond, label %return, label %bb @@ -29,21 +33,26 @@ return: ; preds = %bb, %entry ; Unable to eliminate cast because the mantissa bits for double are not enough ; to hold all of i64 IV bits. define void @foobar2(i64 %n) nounwind { + +; CHECK-LABEL: foobar2( +; CHECK-NOT: phi double +; CHECK-NOT: phi float + entry: - icmp eq i64 %n, 0 ; :0 [#uses=2] - br i1 %0, label %return, label %bb.nph + %cond = icmp eq i64 %n, 0 ; :0 [#uses=2] + br i1 %cond, label %return, label %bb.nph bb.nph: ; preds = %entry - %umax = select i1 %0, i64 1, i64 %n ; [#uses=1] + %umax = select i1 %cond, i64 1, i64 %n ; [#uses=1] br label %bb bb: ; preds = %bb, %bb.nph %i.03 = phi i64 [ 0, %bb.nph ], [ %indvar.next, %bb ] ; [#uses=3] - trunc i64 %i.03 to i32 ; :1 [#uses=1] - tail call void @bar( i32 %1 ) nounwind - uitofp i64 %i.03 to double ; :2 [#uses=1] - tail call void @foo( double %2 ) nounwind - %indvar.next = add i64 %i.03, 1 ; [#uses=2] + %tmp1 = trunc i64 %i.03 to i32 ; :1 [#uses=1] + tail call void @bar( i32 %tmp1 ) nounwind + %tmp2 = uitofp i64 %i.03 to double ; :2 [#uses=1] + tail call void @foo( double %tmp2 ) nounwind + %indvar.next = add nsw nuw i64 %i.03, 1 ; [#uses=2] %exitcond = icmp eq i64 %indvar.next, %umax ; [#uses=1] br i1 %exitcond, label %return, label %bb @@ -53,20 +62,25 @@ return: ; preds = %bb, %entry ; Unable to eliminate cast due to potentional overflow. define void @foobar3() nounwind { + +; CHECK-LABEL: foobar3( +; CHECK-NOT: phi double +; CHECK-NOT: phi float + entry: - tail call i32 (...) @nn( ) nounwind ; :0 [#uses=1] - icmp eq i32 %0, 0 ; :1 [#uses=1] - br i1 %1, label %return, label %bb + %tmp0 = tail call i32 (...) @nn( ) nounwind ; :0 [#uses=1] + %cond = icmp eq i32 %tmp0, 0 ; :1 [#uses=1] + br i1 %cond, label %return, label %bb bb: ; preds = %bb, %entry - %i.03 = phi i32 [ 0, %entry ], [ %3, %bb ] ; [#uses=3] + %i.03 = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; [#uses=3] tail call void @bar( i32 %i.03 ) nounwind - uitofp i32 %i.03 to double ; :2 [#uses=1] - tail call void @foo( double %2 ) nounwind - add i32 %i.03, 1 ; :3 [#uses=2] - tail call i32 (...) @nn( ) nounwind ; :4 [#uses=1] - icmp ugt i32 %4, %3 ; :5 [#uses=1] - br i1 %5, label %bb, label %return + %tmp2 = uitofp i32 %i.03 to double ; :2 [#uses=1] + tail call void @foo( double %tmp2 ) nounwind + %indvar.next = add nuw nsw i32 %i.03, 1 ; :3 [#uses=2] + %tmp4 = tail call i32 (...) @nn( ) nounwind ; :4 [#uses=1] + %exitcond = icmp ugt i32 %tmp4, %indvar.next ; :5 [#uses=1] + br i1 %exitcond, label %bb, label %return return: ; preds = %bb, %entry ret void @@ -74,6 +88,11 @@ return: ; preds = %bb, %entry ; Unable to eliminate cast due to overflow. define void @foobar4() nounwind { + +; CHECK-LABEL: foobar4( +; CHECK-NOT: phi double +; CHECK-NOT: phi float + entry: br label %bb.nph @@ -86,7 +105,7 @@ bb: ; preds = %bb, %bb.nph tail call void @bar( i32 %tmp2 ) nounwind %tmp3 = uitofp i8 %i.03 to double ; :1 [#uses=1] tail call void @foo( double %tmp3 ) nounwind - %indvar.next = add i8 %i.03, 1 ; [#uses=2] + %indvar.next = add nsw nuw i8 %i.03, 1 ; [#uses=2] %tmp = sext i8 %indvar.next to i32 %exitcond = icmp eq i32 %tmp, 32767 ; [#uses=1] br i1 %exitcond, label %return, label %bb @@ -100,4 +119,3 @@ declare void @bar(i32) declare void @foo(double) declare i32 @nn(...) -