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5541068ad3
only run for x86 with fastisel. I've found it being very effective in eliminating some obvious dead code as result of formal parameter lowering especially when tail call optimization eliminated the need for some of the loads from fixed frame objects. It also shrinks a number of the tests. A couple of tests no longer make sense and are now eliminated. llvm-svn: 95493
48 lines
2.2 KiB
LLVM
48 lines
2.2 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin10.0 -relocation-model=pic -disable-fp-elim | FileCheck %s
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; It's not legal to fold a load from 32-bit stack slot into a 64-bit
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; instruction. If done, the instruction does a 64-bit load and that's not
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; safe. This can happen we a subreg_to_reg 0 has been coalesced. One
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; exception is when the instruction that folds the load is a move, then we
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; can simply turn it into a 32-bit load from the stack slot.
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; rdar://7170444
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%struct.ComplexType = type { i32 }
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define i32 @t(i32 %clientPort, i32 %pluginID, i32 %requestID, i32 %objectID, i64 %serverIdentifier, i64 %argumentsData, i32 %argumentsLength) ssp {
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entry:
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; CHECK: _t:
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; CHECK: movl 16(%rbp),
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%0 = zext i32 %argumentsLength to i64 ; <i64> [#uses=1]
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%1 = zext i32 %clientPort to i64 ; <i64> [#uses=1]
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%2 = inttoptr i64 %1 to %struct.ComplexType* ; <%struct.ComplexType*> [#uses=1]
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%3 = invoke i8* @pluginInstance(i8* undef, i32 %pluginID)
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to label %invcont unwind label %lpad ; <i8*> [#uses=1]
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invcont: ; preds = %entry
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%4 = add i32 %requestID, %pluginID ; <i32> [#uses=0]
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%5 = invoke zeroext i8 @invoke(i8* %3, i32 %objectID, i8* undef, i64 %argumentsData, i32 %argumentsLength, i64* undef, i32* undef)
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to label %invcont1 unwind label %lpad ; <i8> [#uses=0]
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invcont1: ; preds = %invcont
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%6 = getelementptr inbounds %struct.ComplexType* %2, i64 0, i32 0 ; <i32*> [#uses=1]
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%7 = load i32* %6, align 4 ; <i32> [#uses=1]
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invoke void @booleanAndDataReply(i32 %7, i32 undef, i32 %requestID, i32 undef, i64 undef, i32 undef)
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to label %invcont2 unwind label %lpad
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invcont2: ; preds = %invcont1
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ret i32 0
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lpad: ; preds = %invcont1, %invcont, %entry
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%8 = call i32 @vm_deallocate(i32 undef, i64 0, i64 %0) ; <i32> [#uses=0]
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unreachable
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}
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declare i32 @vm_deallocate(i32, i64, i64)
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declare i8* @pluginInstance(i8*, i32)
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declare zeroext i8 @invoke(i8*, i32, i8*, i64, i32, i64*, i32*)
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declare void @booleanAndDataReply(i32, i32, i32, i32, i64, i32)
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