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author | rdivacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
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committer | rdivacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
commit | cd749a9c07f1de2fb8affde90537efa4bc3e7c54 (patch) | |
tree | b21f6de4e08b89bb7931806bab798fc2a5e3a686 /test/Transforms/IndVarSimplify/lftr-promote.ll | |
parent | 72621d11de5b873f1695f391eb95f0b336c3d2d4 (diff) | |
download | FreeBSD-src-cd749a9c07f1de2fb8affde90537efa4bc3e7c54.zip FreeBSD-src-cd749a9c07f1de2fb8affde90537efa4bc3e7c54.tar.gz |
Update llvm to r84119.
Diffstat (limited to 'test/Transforms/IndVarSimplify/lftr-promote.ll')
-rw-r--r-- | test/Transforms/IndVarSimplify/lftr-promote.ll | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/lftr-promote.ll b/test/Transforms/IndVarSimplify/lftr-promote.ll new file mode 100644 index 0000000..c4ecc84 --- /dev/null +++ b/test/Transforms/IndVarSimplify/lftr-promote.ll @@ -0,0 +1,38 @@ +; RUN: opt < %s -indvars -S | grep add | count 1 + +; Indvars should be able to compute the exit value of this loop +; without any additional arithmetic. The only add needed should +; be the canonical IV increment. + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" + +define void @foo(double* %p, i32 %n) nounwind { +entry: + %0 = icmp sgt i32 %n, 0 ; <i1> [#uses=1] + br i1 %0, label %bb.nph, label %return + +bb.nph: ; preds = %entry + br label %bb2 + +bb2: ; preds = %bb3, %bb.nph + %i.01 = phi i32 [ %7, %bb3 ], [ 0, %bb.nph ] ; <i32> [#uses=3] + %1 = sext i32 %i.01 to i64 ; <i64> [#uses=1] + %2 = getelementptr double* %p, i64 %1 ; <double*> [#uses=1] + %3 = load double* %2, align 8 ; <double> [#uses=1] + %4 = fmul double %3, 1.100000e+00 ; <double> [#uses=1] + %5 = sext i32 %i.01 to i64 ; <i64> [#uses=1] + %6 = getelementptr double* %p, i64 %5 ; <double*> [#uses=1] + store double %4, double* %6, align 8 + %7 = add i32 %i.01, 1 ; <i32> [#uses=2] + br label %bb3 + +bb3: ; preds = %bb2 + %8 = icmp slt i32 %7, %n ; <i1> [#uses=1] + br i1 %8, label %bb2, label %bb3.return_crit_edge + +bb3.return_crit_edge: ; preds = %bb3 + br label %return + +return: ; preds = %bb3.return_crit_edge, %entry + ret void +} |