forked from OSchip/llvm-project
124 lines
4.2 KiB
LLVM
124 lines
4.2 KiB
LLVM
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
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define signext i32 @test1(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
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entry:
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; CHECK-LABEL: test1:
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; CHECK: std 2, 24(1)
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; CHECK-NOT: std 2, 24(1)
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%call = tail call signext i32 %Func(i32 signext %i)
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%call1 = tail call signext i32 %Func2(i32 signext %i)
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%add2 = add nsw i32 %call1, %call
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ret i32 %add2
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}
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define signext i32 @test2(i32 signext %i, i32 signext %j, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
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entry:
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; CHECK-LABEL: test2:
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; CHECK: std 2, 24(1)
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; CHECK-NOT: std 2, 24(1)
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%call = tail call signext i32 %Func(i32 signext %i)
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%tobool = icmp eq i32 %j, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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%call1 = tail call signext i32 %Func(i32 signext %i)
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%add2 = add nsw i32 %call1, %call
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%call3 = tail call signext i32 %Func2(i32 signext %i)
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%add4 = add nsw i32 %add2, %call3
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br label %if.end
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if.end: ; preds = %entry, %if.then
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%Sum.0 = phi i32 [ %add4, %if.then ], [ %call, %entry ]
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%call5 = tail call signext i32 %Func(i32 signext %i)
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%add6 = add nsw i32 %call5, %Sum.0
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ret i32 %add6
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}
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; Check for multiple TOC saves with if then else where neither dominates the other.
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define signext i32 @test3(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
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; CHECK-LABEL: test3:
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; CHECK: std 2, 24(1)
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; CHECK: std 2, 24(1)
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; CHECK-NOT: std 2, 24(1)
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entry:
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%tobool = icmp eq i32 %i, 0
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br i1 %tobool, label %if.else, label %if.then
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if.then: ; preds = %entry
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%call = tail call signext i32 %Func(i32 signext %i)
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br label %if.end
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if.else: ; preds = %entry
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%call1 = tail call signext i32 %Func2(i32 signext 0)
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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%Sum.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
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%call3 = tail call signext i32 %Func(i32 signext %i)
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%add4 = add nsw i32 %call3, %Sum.0
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ret i32 %add4
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}
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define signext i32 @test4(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
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; CHECK-LABEL: test4:
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; CHECK: std 2, 24(1)
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; CHECK-NOT: std 2, 24(1)
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entry:
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%call = tail call signext i32 %Func(i32 signext %i)
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%tobool = icmp eq i32 %i, 0
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br i1 %tobool, label %if.else, label %if.then
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if.then: ; preds = %entry
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%call1 = tail call signext i32 %Func(i32 signext %i)
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br label %if.end
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if.else: ; preds = %entry
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%call3 = tail call signext i32 %Func2(i32 signext 0)
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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%call1.pn = phi i32 [ %call1, %if.then ], [ %call3, %if.else ]
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%Sum.0 = add nsw i32 %call1.pn, %call
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ret i32 %Sum.0
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}
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; Check for multiple TOC saves with if then where neither is redundant.
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define signext i32 @test5(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture readnone %Func2) {
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entry:
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; CHECK-LABEL: test5:
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; CHECK: std 2, 24(1)
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; CHECK: std 2, 24(1)
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%tobool = icmp eq i32 %i, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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%call = tail call signext i32 %Func(i32 signext %i)
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br label %if.end
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if.end: ; preds = %entry, %if.then
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%Sum.0 = phi i32 [ %call, %if.then ], [ 0, %entry ]
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%call1 = tail call signext i32 %Func(i32 signext %i)
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%add2 = add nsw i32 %call1, %Sum.0
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ret i32 %add2
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}
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; Check for multiple TOC saves if there are dynamic allocations on the stack.
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define signext i32 @test6(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
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entry:
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; CHECK-LABEL: test6:
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; CHECK: std 2, 24(1)
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; CHECK: std 2, 24(1)
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%conv = sext i32 %i to i64
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%0 = alloca i8, i64 %conv, align 16
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%1 = bitcast i8* %0 to i32*
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%call = tail call signext i32 %Func(i32 signext %i)
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call void @useAlloca(i32* nonnull %1, i32 signext %call)
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%call1 = call signext i32 %Func2(i32 signext %i)
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%add2 = add nsw i32 %call1, %call
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ret i32 %add2
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}
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declare void @useAlloca(i32*, i32 signext)
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