diff options
author | Dan Gohman <gohman@apple.com> | 2009-08-18 16:46:41 +0000 |
---|---|---|
committer | Dan Gohman <gohman@apple.com> | 2009-08-18 16:46:41 +0000 |
commit | c40f17b08774c2dcc5787fd83241e3c64ba82974 (patch) | |
tree | ae3c3455972b1fca1b2c67e7381205bba7dc2843 /test/Transforms/IndVarSimplify | |
parent | 4d35fce60c5ac108d24428829e51a97eeca7836c (diff) | |
download | external_llvm-c40f17b08774c2dcc5787fd83241e3c64ba82974.zip external_llvm-c40f17b08774c2dcc5787fd83241e3c64ba82974.tar.gz external_llvm-c40f17b08774c2dcc5787fd83241e3c64ba82974.tar.bz2 |
Generalize ScalarEvolution to be able to analyze GEPs when
TargetData is not present. It still uses TargetData when available.
This generalization also fixed some limitations in the TargetData
case; the attached testcase covers this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79344 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/IndVarSimplify')
-rw-r--r-- | test/Transforms/IndVarSimplify/preserve-gep-nested.ll | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/preserve-gep-nested.ll b/test/Transforms/IndVarSimplify/preserve-gep-nested.ll new file mode 100644 index 0000000..6959064 --- /dev/null +++ b/test/Transforms/IndVarSimplify/preserve-gep-nested.ll @@ -0,0 +1,75 @@ +; RUN: llvm-as < %s | opt -indvars | llvm-dis > %t +; Exactly one getelementptr for each load+store. +; RUN: grep getelementptr %t | count 6 +; Each getelementptr using %struct.Q* %s as a base and not i8*. +; RUN: grep {getelementptr \[%\]struct\\.Q\\* \[%\]s,} %t | count 6 +; No explicit integer multiplications! +; RUN: not grep {= mul} %t +; No i8* arithmetic or pointer casting anywhere! +; RUN: not grep {i8\\*} %t +; RUN: not grep bitcast %t +; RUN: not grep inttoptr %t +; RUN: not grep ptrtoint %t + +; FIXME: This test should pass with or without TargetData. Until opt +; supports running tests without targetdata, just hardware this in. +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" + +%struct.Q = type { [10 x %struct.N] } +%struct.N = type { %struct.S } +%struct.S = type { [100 x double], [100 x double] } + +define void @foo(%struct.Q* %s, i64 %n) nounwind { +entry: + br label %bb1 + +bb1: + %i = phi i64 [ 2, %entry ], [ %i.next, %bb ] + %j = phi i64 [ 0, %entry ], [ %j.next, %bb ] + %t5 = icmp slt i64 %i, %n + br i1 %t5, label %bb, label %return + +bb: + %t0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 0, i64 %i + %t1 = load double* %t0, align 8 + %t2 = fmul double %t1, 3.200000e+00 + %t3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 0, i64 %i + store double %t2, double* %t3, align 8 + + %s0 = getelementptr inbounds %struct.Q* %s, i64 13, i32 0, i64 7, i32 0, i32 1, i64 %i + %s1 = load double* %s0, align 8 + %s2 = fmul double %s1, 3.200000e+00 + %s3 = getelementptr inbounds %struct.Q* %s, i64 13, i32 0, i64 7, i32 0, i32 1, i64 %i + store double %s2, double* %s3, align 8 + + %u0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 7, i32 0, i32 1, i64 %j + %u1 = load double* %u0, align 8 + %u2 = fmul double %u1, 3.200000e+00 + %u3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 7, i32 0, i32 1, i64 %j + store double %u2, double* %u3, align 8 + + %v0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 1, i64 %i + %v1 = load double* %v0, align 8 + %v2 = fmul double %v1, 3.200000e+00 + %v3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 1, i64 %i + store double %v2, double* %v3, align 8 + + %w0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 0, i64 %j + %w1 = load double* %w0, align 8 + %w2 = fmul double %w1, 3.200000e+00 + %w3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 0, i64 %j + store double %w2, double* %w3, align 8 + + %x0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 3, i32 0, i32 0, i64 %i + %x1 = load double* %x0, align 8 + %x2 = fmul double %x1, 3.200000e+00 + %x3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 3, i32 0, i32 0, i64 %i + store double %x2, double* %x3, align 8 + + %i.next = add i64 %i, 1 + %j.next = add i64 %j, 1 + br label %bb1 + +return: + ret void +} |