Refactor and check "onlyReadsMemory" before optimizing builtins.
This patch is mostly just refactoring a bunch of copy-and-pasted code, but
it also adds a check that the call instructions are readnone or readonly.
That check was already present for sin, cos, sqrt, log2, and exp2 calls, but
it was missing for the rest of the builtins being handled in this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161282 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/fparith.ll b/test/CodeGen/ARM/fparith.ll
index ce6d6b2..a8bae3b 100644
--- a/test/CodeGen/ARM/fparith.ll
+++ b/test/CodeGen/ARM/fparith.ll
@@ -84,7 +84,7 @@
;CHECK: f11:
;CHECK: bic
entry:
- %tmp1 = call float @fabsf( float %a ) ; <float> [#uses=1]
+ %tmp1 = call float @fabsf( float %a ) readnone ; <float> [#uses=1]
ret float %tmp1
}
@@ -94,7 +94,7 @@
;CHECK: f12:
;CHECK: vabs.f64
entry:
- %tmp1 = call double @fabs( double %a ) ; <double> [#uses=1]
+ %tmp1 = call double @fabs( double %a ) readnone ; <double> [#uses=1]
ret double %tmp1
}