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Do not store direct parameters that are only read.

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This commit is contained in:
Christoffer Lerno
2022-01-04 23:16:32 +01:00
parent 1d5ff71b21
commit 869aa7ed76
46 changed files with 606 additions and 709 deletions
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21
test/test_suite/struct/struct_as_value_aarch64.c3t
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@@ -15,32 +15,31 @@ fn Event test(int x)
// #expect: test.ll
%x = alloca i32, align 4
define i64 @test.test(i32 %0) #0 {
entry:
%foo = alloca %Event, align 4
%bar = alloca %Event, align 4
%taddr = alloca %Event, align 4
store i32 %0, i32* %x, align 4
%1 = bitcast %Event* %foo to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %1, i8* align 4 bitcast (%Event* @.__const to i8*), i32 4, i1 false)
%2 = bitcast %Event* %bar to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %2, i8* align 4 bitcast (%Event* @.__const.1 to i8*), i32 4, i1 false)
%3 = load i32, i32* %x, align 4
%intbool = icmp ne i32 %3, 0
%intbool = icmp ne i32 %0, 0
br i1 %intbool, label %cond.lhs, label %cond.rhs
cond.lhs: ; preds = %entry
%4 = load %Event, %Event* %foo, align 4
%3 = load %Event, %Event* %foo, align 4
br label %cond.phi
cond.rhs: ; preds = %entry
%5 = load %Event, %Event* %bar, align 4
%4 = load %Event, %Event* %bar, align 4
br label %cond.phi
cond.phi: ; preds = %cond.rhs, %cond.lhs
%val = phi %Event [ %4, %cond.lhs ], [ %5, %cond.rhs ]
%val = phi %Event [ %3, %cond.lhs ], [ %4, %cond.rhs ]
store %Event %val, %Event* %taddr, align 4
%6 = getelementptr inbounds %Event, %Event* %taddr, i32 0, i32 0
%7 = load i32, i32* %6, align 4
%8 = zext i32 %7 to i64
ret i64 %8
%5 = getelementptr inbounds %Event, %Event* %taddr, i32 0, i32 0
%6 = load i32, i32* %5, align 4
%7 = zext i32 %6 to i64
ret i64 %7
}