| Zaara Syeda | f94d58d | 2017-11-27 20:26:36 +0000 | [diff] [blame] | 1 | ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s |
| 2 | define signext i32 @test1(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) { |
| 3 | entry: |
| 4 | ; CHECK-LABEL: test1: |
| 5 | ; CHECK: std 2, 24(1) |
| 6 | ; CHECK-NOT: std 2, 24(1) |
| 7 | %call = tail call signext i32 %Func(i32 signext %i) |
| 8 | %call1 = tail call signext i32 %Func2(i32 signext %i) |
| 9 | %add2 = add nsw i32 %call1, %call |
| 10 | ret i32 %add2 |
| 11 | } |
| 12 | |
| 13 | define signext i32 @test2(i32 signext %i, i32 signext %j, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) { |
| 14 | entry: |
| 15 | ; CHECK-LABEL: test2: |
| 16 | ; CHECK: std 2, 24(1) |
| 17 | ; CHECK-NOT: std 2, 24(1) |
| 18 | %call = tail call signext i32 %Func(i32 signext %i) |
| 19 | %tobool = icmp eq i32 %j, 0 |
| 20 | br i1 %tobool, label %if.end, label %if.then |
| 21 | |
| 22 | if.then: ; preds = %entry |
| 23 | %call1 = tail call signext i32 %Func(i32 signext %i) |
| 24 | %add2 = add nsw i32 %call1, %call |
| 25 | %call3 = tail call signext i32 %Func2(i32 signext %i) |
| 26 | %add4 = add nsw i32 %add2, %call3 |
| 27 | br label %if.end |
| 28 | |
| 29 | if.end: ; preds = %entry, %if.then |
| 30 | %Sum.0 = phi i32 [ %add4, %if.then ], [ %call, %entry ] |
| 31 | %call5 = tail call signext i32 %Func(i32 signext %i) |
| 32 | %add6 = add nsw i32 %call5, %Sum.0 |
| 33 | ret i32 %add6 |
| 34 | } |
| 35 | |
| 36 | ; Check for multiple TOC saves with if then else where neither dominates the other. |
| 37 | define signext i32 @test3(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) { |
| 38 | ; CHECK-LABEL: test3: |
| 39 | ; CHECK: std 2, 24(1) |
| 40 | ; CHECK: std 2, 24(1) |
| 41 | ; CHECK-NOT: std 2, 24(1) |
| 42 | entry: |
| 43 | %tobool = icmp eq i32 %i, 0 |
| 44 | br i1 %tobool, label %if.else, label %if.then |
| 45 | |
| 46 | if.then: ; preds = %entry |
| 47 | %call = tail call signext i32 %Func(i32 signext %i) |
| 48 | br label %if.end |
| 49 | |
| 50 | if.else: ; preds = %entry |
| 51 | %call1 = tail call signext i32 %Func2(i32 signext 0) |
| 52 | br label %if.end |
| 53 | |
| 54 | if.end: ; preds = %if.else, %if.then |
| 55 | %Sum.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ] |
| 56 | %call3 = tail call signext i32 %Func(i32 signext %i) |
| 57 | %add4 = add nsw i32 %call3, %Sum.0 |
| 58 | ret i32 %add4 |
| 59 | } |
| 60 | |
| 61 | define signext i32 @test4(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) { |
| 62 | ; CHECK-LABEL: test4: |
| 63 | ; CHECK: std 2, 24(1) |
| 64 | ; CHECK-NOT: std 2, 24(1) |
| 65 | |
| 66 | entry: |
| 67 | %call = tail call signext i32 %Func(i32 signext %i) |
| 68 | %tobool = icmp eq i32 %i, 0 |
| 69 | br i1 %tobool, label %if.else, label %if.then |
| 70 | |
| 71 | if.then: ; preds = %entry |
| 72 | %call1 = tail call signext i32 %Func(i32 signext %i) |
| 73 | br label %if.end |
| 74 | |
| 75 | if.else: ; preds = %entry |
| 76 | %call3 = tail call signext i32 %Func2(i32 signext 0) |
| 77 | br label %if.end |
| 78 | |
| 79 | if.end: ; preds = %if.else, %if.then |
| 80 | %call1.pn = phi i32 [ %call1, %if.then ], [ %call3, %if.else ] |
| 81 | %Sum.0 = add nsw i32 %call1.pn, %call |
| 82 | ret i32 %Sum.0 |
| 83 | } |
| 84 | |
| 85 | ; Check for multiple TOC saves with if then where neither is redundant. |
| 86 | define signext i32 @test5(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture readnone %Func2) { |
| 87 | entry: |
| 88 | ; CHECK-LABEL: test5: |
| 89 | ; CHECK: std 2, 24(1) |
| 90 | ; CHECK: std 2, 24(1) |
| 91 | |
| 92 | %tobool = icmp eq i32 %i, 0 |
| 93 | br i1 %tobool, label %if.end, label %if.then |
| 94 | |
| 95 | if.then: ; preds = %entry |
| 96 | %call = tail call signext i32 %Func(i32 signext %i) |
| 97 | br label %if.end |
| 98 | |
| 99 | if.end: ; preds = %entry, %if.then |
| 100 | %Sum.0 = phi i32 [ %call, %if.then ], [ 0, %entry ] |
| 101 | %call1 = tail call signext i32 %Func(i32 signext %i) |
| 102 | %add2 = add nsw i32 %call1, %Sum.0 |
| 103 | ret i32 %add2 |
| 104 | } |
| 105 | |
| 106 | ; Check for multiple TOC saves if there are dynamic allocations on the stack. |
| 107 | define signext i32 @test6(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) { |
| 108 | entry: |
| 109 | ; CHECK-LABEL: test6: |
| 110 | ; CHECK: std 2, 24(1) |
| 111 | ; CHECK: std 2, 24(1) |
| 112 | |
| 113 | %conv = sext i32 %i to i64 |
| 114 | %0 = alloca i8, i64 %conv, align 16 |
| 115 | %1 = bitcast i8* %0 to i32* |
| 116 | %call = tail call signext i32 %Func(i32 signext %i) |
| 117 | call void @useAlloca(i32* nonnull %1, i32 signext %call) |
| 118 | %call1 = call signext i32 %Func2(i32 signext %i) |
| 119 | %add2 = add nsw i32 %call1, %call |
| 120 | ret i32 %add2 |
| 121 | } |
| 122 | |
| 123 | declare void @useAlloca(i32*, i32 signext) |