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llvm-mirror/test/CodeGen/PowerPC/ppc64-toc.ll
Ng Zhi An 347f41d492 [PowerPC] Fix downcast from nullptr for target streamer
getTargetStreamer() might return null (e.g. when running inlined-strings.ll test),
downcasting to a reference will be wrong. This is detectable with -fsanitize=null.

Reviewed By: steven.zhang

Differential Revision: https://reviews.llvm.org/D78686
2020-04-28 09:20:10 +00:00

72 lines
2.3 KiB
LLVM

; RUN: llc -verify-machineinstrs -code-model=small < %s | FileCheck %s
; Test with null streamer.
; RUN: llc -O0 -filetype=null < %s
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
@double_array = global [32 x double] zeroinitializer, align 8
@number64 = global i64 10, align 8
@internal_static_var.x = internal unnamed_addr global i64 0, align 8
define i64 @access_int64(i64 %a) nounwind readonly {
entry:
; CHECK-LABEL: access_int64:
; CHECK-NEXT: .p2align 3
; CHECK-NEXT: .quad .L[[BEGIN:.*]]
; CHECK-NEXT: .quad .TOC.@tocbase
; CHECK-NEXT: .quad 0
; CHECK-NEXT: .text
; CHECK-NEXT: .L[[BEGIN]]:
%0 = load i64, i64* @number64, align 8
; CHECK: ld {{[0-9]+}}, .LC{{[0-9]+}}@toc(2)
%cmp = icmp eq i64 %0, %a
%conv1 = zext i1 %cmp to i64
ret i64 %conv1
}
define i64 @internal_static_var(i64 %a) nounwind {
entry:
; CHECK-LABEL: internal_static_var:
; CHECK: ld {{[0-9]+}}, .LC{{[0-9]+}}@toc(2)
%0 = load i64, i64* @internal_static_var.x, align 8
%cmp = icmp eq i64 %0, %a
%conv1 = zext i1 %cmp to i64
ret i64 %conv1
}
define i32 @access_double(double %a) nounwind readnone {
entry:
; CHECK-LABEL: access_double:
; CHECK: ld {{[0-9]+}}, .LC{{[0-9]+}}@toc(2)
%cmp = fcmp oeq double %a, 2.000000e+00
%conv = zext i1 %cmp to i32
ret i32 %conv
}
define i32 @access_double_array(double %a, i32 %i) nounwind readonly {
entry:
; CHECK-LABEL: access_double_array:
%idxprom = sext i32 %i to i64
%arrayidx = getelementptr inbounds [32 x double], [32 x double]* @double_array, i64 0, i64 %idxprom
%0 = load double, double* %arrayidx, align 8
; CHECK: ld {{[0-9]+}}, .LC{{[0-9]+}}@toc(2)
%cmp = fcmp oeq double %0, %a
%conv = zext i1 %cmp to i32
ret i32 %conv
}
; Check the creation of 4 .tc entries:
; * int64_t global 'number64'
; * double constant 2.0
; * double array 'double_array'
; * static int64_t 'x' accessed within '@internal_static_var'
; CHECK: .LC{{[0-9]+}}:
; CHECK-NEXT: .tc {{[\._a-zA-Z0-9]+}}[TC],{{[\._a-zA-Z0-9]+}}
; CHECK-NEXT: .LC{{[0-9]+}}:
; CHECK-NEXT: .tc {{[\._a-zA-Z0-9]+}}[TC],{{[\._a-zA-Z0-9]+}}
; CHECK-NEXT: .LC{{[0-9]+}}:
; CHECK-NEXT: .tc {{[\._a-zA-Z0-9]+}}[TC],{{[\._a-zA-Z0-9]+}}
; CHECK-NEXT: .LC{{[0-9]+}}:
; CHECK-NEXT: .tc {{[\._a-zA-Z0-9]+}}[TC],{{[\._a-zA-Z0-9]+}}