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| author | Evan Cheng <evan.cheng@apple.com> | 2008-10-25 00:52:41 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-10-25 00:52:41 +0000 |
| commit | 78dfef771b2552090be60bee404570c2a0b03bcb (patch) | |
| tree | 8f67e728ffd0b885e2d287fc9e0bcd8249b3a7ad /test/CodeGen | |
| parent | f14df0234030edee0ae02dfc1de3a4eb0c3b5977 (diff) | |
If val# def is ~0U, meaning it's defined by a PHI, and it's previously split, spill before the barrier because it's impossible to determine if all the defs are spilled in the same spill slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58129 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/pre-split4.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pre-split4.ll b/test/CodeGen/X86/pre-split4.ll new file mode 100644 index 0000000000..44ea375a70 --- /dev/null +++ b/test/CodeGen/X86/pre-split4.ll @@ -0,0 +1,24 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -pre-alloc-split -stats |& \ +; RUN: grep {pre-alloc-split} | grep {Number of intervals split} | grep 4 + +define i32 @main(i32 %argc, i8** %argv) nounwind { +entry: + br label %bb + +bb: ; preds = %bb, %entry + %k.0.reg2mem.0 = phi double [ 1.000000e+00, %entry ], [ %6, %bb ] ; <double> [#uses=2] + %Flint.0.reg2mem.0 = phi double [ 0.000000e+00, %entry ], [ %5, %bb ] ; <double> [#uses=1] + %twoThrd.0.reg2mem.0 = phi double [ 0.000000e+00, %entry ], [ %1, %bb ] ; <double> [#uses=1] + %0 = tail call double @llvm.pow.f64(double 0x3FE5555555555555, double 0.000000e+00) ; <double> [#uses=1] + %1 = add double %0, %twoThrd.0.reg2mem.0 ; <double> [#uses=1] + %2 = tail call double @sin(double %k.0.reg2mem.0) nounwind readonly ; <double> [#uses=1] + %3 = mul double 0.000000e+00, %2 ; <double> [#uses=1] + %4 = fdiv double 1.000000e+00, %3 ; <double> [#uses=1] + %5 = add double %4, %Flint.0.reg2mem.0 ; <double> [#uses=1] + %6 = add double %k.0.reg2mem.0, 1.000000e+00 ; <double> [#uses=1] + br label %bb +} + +declare double @llvm.pow.f64(double, double) nounwind readonly + +declare double @sin(double) nounwind readonly |